Answer:
B. Organized around proteins
Explanation:
Because the chromatin is arranged around proteins, the 2 meters of DNA that make up the human genome may fit in one cell.
How does a DNA fit into every cell?Because the entire DNA strand must fit inside the cell's nucleus, it must be wrapped very tightly. The DNA is wound around structural histone proteins, which serve as a scaffolding for the DNA to be wound around, to achieve this.
Do 2 meters of DNA exist?Human cells contain around 2 meters of DNA if it were stretched end to end. Yet, the nucleus, which contains the DNA, has a diameter of only around 6 micrometers. This is equivalent to stuffing 40 km (24 miles) of extremely, geometrically speaking.
To know more about chromatin visit:-
https://brainly.com/question/11073325
#SPJ1
Which organism provides most of the oxygen in ocean water?
sea anemones
algae
coral
fish
HELP FAST
Assume that one backbone of a DNA molecule has the sequence given below. A-T-G-G-G-G-G-C-G-A-T-A-T-T-T-T-A-T-C-C-G-A-C-G For this sequence: give the expected sequence of the other DNA backbone. T-A-C-C-C-C-C-G-C-T-A-T-A-A-A-A-T-A-G-G-C-T-G-C give the RNA sequence transcribed from the original DNA backbone. U-A-C-C-C-C-C-G-C-U-A-T-A-A-A-A-U-A-G-G-C-U-G-C give the Amino Acid sequence of the protein built from the original DNA backbone.
Answer:
DNA: ATGGGGGCGATATTTTATCCGACG
RNA: AUGGGGGCGAUAUUUUAUCCGACG
Protein: MGAIFYPT
Explanation:
Transcription is a genetic process by which the information in a strand of DNA is copied into RNA, typically a messenger RNA (mRNA) sequence which is subsequently used to create a protein by the process of translation. During translation, each triplet of nucleotides or 'codon' corresponds to a specific amino acid. For example, AUG is a codon that codes for methionine (M) and also acts as an initiation codon at the beginning of the nascent polypeptide chain.
Describe ways companies, or individual employees can manage their stress so that they can invest in their future well-being.
Answer
Workload, lack of job security, and personnel problems gang up on and overwhelm employees, dragging down their satisfaction levels. In fact, the negative consequences from stress are so strong that it has been declared a World Wide Epidemic by the World Health Organization.Explanation:u got this
Please help me with this
Answer:
Hope this helps you! :)
Explanation:
Carbon dioxide is added to the atmosphere naturally when organisms respire or decompose (decay), carbonate rocks are weathered, forest fires occur, and volcanoes erupt. Carbon dioxide is also added to the atmosphere through human activities, such as the burning of fossil fuels and forests and the production of cement.
Jestions
All written responses must be handwritten in clear and complete sentences. Using lined paper,
please clearly label each response with the appropriate number and letter. (Example: 1) a) ...)
1) Points A and B in the diagram show two processes
taking place at interactions in Earth's oceanic crust.
a) Describe the process taking place at point A.
b) Describe the process taking place at point B.
continent
oceanic
crust
B
mantle
a) Describe how an igneous rock becomes a sedimentary rock.
b) Explain why metamorphic rock rarely forms at Earth's surface.
A
magma
3) Cities A, B, and C are located as shown on the map.
A. Explain how the weather at these three locations is likely to differ.
B. Explain the cause of the difference in weather between the three locations.
B
2) The rock cycle is a continuous process by which rocks are formed, changed from one form
to another, destroyed, and then reformed again.
continent
oceanic
crust
mantle
a) The process taking place at point A is subduction. This is where oceanic crust is forced under continental crust.
b) The process taking place at point B is spreading. This is where new oceanic crust is formed as magma rises from the mantle and erupts at the surface. The new oceanic crust then spreads away from the ridge, creating a new ocean basin.
How to explain the informationa) An igneous rock can become a sedimentary rock through the process of weathering and erosion. Weathering is the process by which rocks are broken down into smaller pieces.
b) Metamorphic rock rarely forms at Earth's surface because the temperatures and pressures required for metamorphism are typically found at greater depths. However, metamorphic rock can form at Earth's surface if it is buried by other rocks and subjected to high temperatures and pressures.
a) The weather at cities A, B, and C is likely to differ because they are located in different climate zones. City A is located in the tropics, where the weather is hot and humid. City B is located in the temperate zone, where the weather is more moderate. City C is located in the Arctic, where the weather is cold and dry.
b) The difference in weather between the three cities is caused by the different climates. The tropics are warm and humid because they receive a lot of sunlight and rainfall. The temperate zone is more moderate because it receives less sunlight and rainfall. The Arctic is cold and dry because it receives very little sunlight and rainfall.
Learn more about subduction on
https://brainly.com/question/1358208
#SPJ1
How would extra carbon dioxide
in a lake be removed?

Answer:
Carbon dioxide in a lake can be removed by chemical treatment using liming agents such as sodium carbonate or hydrated lime and quicklime. These liming agents react with carbon dioxide and reduces carbon dioxide and increases the pH and alkanity of the lake
Explanation:
Can someone help me recreate this? I can’t screenshot it. Do the glucose and NOT any of the lactic acid data.
An organic acid is lactic acid. Its chemical formula is CH3CH(OH)COOH. It is miscible with water and has a white solid state.
Thus, It transforms into a colorless solution when dissolved. In the process of production, both synthetic and natural resources are used. Due to the presence of a hydroxyl group next to the carboxyl group, lactic acid is an alpha-hydroxy acid (AHA).
It serves as a synthetic intermediate in a number of biochemical and organic synthesis industries. Lactate (or the lactate anion) is the conjugate base of lactic acid. The resulting acyl group is known as lactoyl.
Lactic acid has two enantiomers and is chiral. One is called l-lactic acid, (S)-lactic acid, or (+)-lactic acid, while the other, which is d-lactic acid, (R)-lactic acid, or ()-lactic acid, is its mirror image.
Thus, An organic acid is lactic acid. Its chemical formula is CH3CH(OH)COOH. It is miscible with water and has a white solid state.
Learn more about Lactic acid, refer to the link:
https://brainly.com/question/4596922
#SPJ1
Which of the following are the large molecules that are broken down into smaller molecules during digestion?
A.Simple sugars B.Carbohydrates
C.Fatty acids
D.Amino acids
Answer:
C
Explanation:
They are fats so fatty acids is the answer.
1. Cellular respiration is a series of chemical reactions that convert the energy in food molecules into energy stored in the molecule _________. Aerobic respiration requires the presence of Oxygen___________ and releases water and _________________ as waste products.
Answer:
1. H2O
2. H
3. 2 molecules of oxygen.
3. Deer mice (adapted from exercise 15.38, 4t ed Baldi & Moore)
3 points
Deer mice are small rodents native to North America with body lengths (excluding tails) that are
known to vary approximately Normally, with a mean ц = 86 mm and a standard deviation o = 8 mm.
A researcher wants to study the effect of habitat food source degradation on deer mouse body
length.
First, however, you want to figure out how many deer mice you would need for successful inference
about the mean u in the population of all deer mice that would ever experience habitat degradation.
What sample size would be needed to estimate y within +/- 2.5 mm with 95% confidence?
I got 62, but the answer is 40, and I can’t figure out what I am doing wrong. Please advise
It's possible that the answer provided is using a different level of confidence than the one specified in the question (95% confidence).
Using the same formula as before, we have:
n = (Z^2 * o^2) / E^2
Substituting the given values, we get:
n = (1.96^2 * 8^2) / 2.5^2 = 61.92
Rounding up to the nearest whole number, we need a sample size of 62 deer mice to estimate the population mean within +/- 2.5 mm with 95% confidence, assuming that the population standard deviation remains the same under habitat food source degradation.
Therefore, it seems like the correct answer should be 62, not 40.
Y=2-x
Y=3x-1
Please help me with this qi
From the analysis of the 2 equations: X = 3/4 and Y = 5/4
Solving simultaneous equationsThe equations can be solved using subtracting one of the two equations from the other.
Let's label the two equations:
Y=3x-1 .................... equation 1
Y=2-X..................... equation 2
Equation 2 can be rearranged such that:
Y = -X+2
Subtracting equation 2 from 1:
Y=3x-1
Y = -X+2
0 = 4X -3
4X = 3
X = 3/4
Substitute X = 3/4 into any of equations 1 or 2 to determine Y.
Y = 3(3/4) - 1
= 9/4 - 1
= 5/4
Hence X = 3/4 and Y = 5/4
More on simultaneous equations can be found here: https://brainly.com/question/16763389
#SPJ1
1
According to the theory of natural selection, what would happen to a species of lizards when a
new predator is introduced into the environment where the lizards live? *
(1 Point)
A. All of th elizards would try to develop new physical traits to a void the new predator,
Because all lizards of the same species have the same physical traits, one lizard would not have an advantage
over another lizard. They would either all survive or all die.
C. The lizards that already have the physical traits needed to avoid the new predator would be more likely to
survive and reproduce and the ones that do not would be less likely to survive and reproduce.
D. Some of the lizards would try to develop new physical traits to avoid the new predator, and other lizards
would die
Figure F Based on the angle of the femur (Figure F) what can we say about the organism it belongs to. -The organism is an ape. -The organism is a tripod. -The organism is a biped. -The organism is a quadruped.
Based on the angle of the femur, the organism is biped.
What is biped organism?Bipedalism is a type of terrestrial locomotion in which an organism moves using its two rear limbs or legs. A biped is an animal or machine that moves on two legs.A biped seems to be an animal that walks on two legs and has two feet. Bipeds include humans. The majority of animals are not bipeds, but mammals that are include kangaroos and some primates. The ostrich, a massive, flightless bird, is the fastest living biped, and bears and lizards are also bipedal.Major morphological features of bipedalism include: a presence of such a bicondylar angle, or valgus knee, a more inferiorly placed foramen magnum; the presence of a reduced or non-opposable big toe; and a higher foramen magnum.To learn more about biped organisms refer to :
https://brainly.com/question/14693941
#SPJ1
Choose the plant that grows from a root?
1. Onions
2. Grass
3. Beans
4. Cattails
Answer:
grass
Explanation:
Observe the spores on a polytrichum slide. since each of these spores may have the potential to develop into a clump of moss gametophytes, how can you explain the large number of spores produced?
Answer: a
Explanation:
I jus took the test
biology lab 14 experiment 1 punnett square crosses post lab questions
Complete question: PUNNETT SQUARE CROSSES
1. Set up and complete Punnett squares for these crosses (remember Y = yellow, y = blue):
a. YY and Yy
b. YY and yy
2. Answer these questions: a. What are the resulting phenotypes? b. Are there any blue kernels? c. How can you tell whether or not there are blue kernels?
3. Set up and complete a Punnett square for a cross of two of the F1 from Step 1 (above).
4. Answer these questions: a. What are the genotypes of the F2 generation? b. What are their phenotypes? c. Are there more or fewer blue kernels than in the F1 generation?
5. Identify the four possible gametes produced by the following individuals (S = smooth, s = wrinkled):
a. YY Ss
b. Yy Ss
Punnett squares are used to get the genotypic and phenotypic frequencies among the progeny produced from a cross. Punnett squares and answers below.
What is a punnett square?The Punnett square is a graphic representation that shows the different types of gamete combinations according to the alleles involved in a cross.
Punnett square shows the probabilities of getting offspring with different genotypes and their consequent phenotypes.
In the exposed example,
Diallelic genes that codes for color
Y = yellow ⇒ dominant allele
y = blue ⇒ recessive allele
We will assume complete dominance, meaning that genotypes with at least one dominant allele will express yellow.
1)
a- Cross 1
Parentals) YY x Yy
Gametes) Y Y Y y
Punnett square) Y Y
Y YY YY
y Yy Yy
F1) Genotype
1/2 = 50% of the progeny is expected to be homozygous dominant, YY
1/2 = 50% of the progeny is expected to be heterozygous, Yy
Phenotype
100% of the progeny is expected to be yellow.
b- Cross 2
Parentals) YY x yy
Gametes) Y Y y y
Punnett square) Y Y
y Yy Yy
y Yy Yy
F1) Genotype
100% of the progeny is expected to be heterozygous, Yy
Phenotype
100% of the progeny is expected to be yellow.
2)
a. What are the resulting phenotypes? Only yellow kernels
b. Are there any blue kernels? No
c. How can you tell whether or not there are blue kernels?
Blue is the recessive phenotype for kernels. Assuming complete dominance, since all genotypes are expected to carry at least one dominant allele, all the F1 kernels are yellow.
3) Let us cross two heterozygous individuals from the F1
Parentals) Yy x Yy
Gametes) Y y Y y
Punnett square) Y y
Y YY Yy
y Yy yy
F1) Genotype
1/4 = 25% of the progeny is expected to be homozygous dominant, YY
1/2 = 50% of the progeny is expected to be heterozygous, Yy
1/4 = 25% of the progeny is expected to be homozygous recessive, yy
Phenotype
75% of the progeny is expected to be yellow.
25% of the progeny is expected to be blue.
4)
a. What are the genotypes of the F2 generation?
- 25% YY (homozygous dominant)
- 50% Yy (Heterozygous)
- 25% yy (Homozygous recessive)
b. What are their phenotypes?
- 75% yellow kernels
- 25% blue kernels
c. Are there more or fewer blue kernels than in the F1 generation?
More. Blue kernels appeared in the F2.
5. Assuming independent genes, the resulting gametes after meiosis are as follows
Gametes
a. YY Ss ⇒ YS, YS, Ys, Ys
b. Yy Ss ⇒ YS, Ys, yS, ys
You can learn more about punnett squares at
brainly.com/question/25357981
#SPJ1
What is the significance of anaphase in this process?
a
Anaphase usually ensures that each daughter cell has the same number of chromosomes as the parent cell.
b
Anaphase usually ensures that each daughter cell has twice as many chromosomes as the parent cell.
С
In anaphase, the cell splits in half.
d
In anaphase, the DNA is being replicated.
Answer:
a ) Anaphase usually ensures that each daughter cell has the same number of chromosomes as the parent cell.
Explanation:
Mitosis: After DNI duplication and condensation, Sister chromatids of the chromosome, are held together in the equatorial plane until they reach the Anaphase, during which certain enzymes are activated to break the bonds among them and the separation of the chromatids occur, migrating to the opposite poles. Meiosis: Gamete formation involves the random and independent segregation of the alleles. After crossing-over, homologous chromosomes which are located in the equatorial plane, get separated. During anaphase I occur the independent separation of homologous chromosomes that migrate to opposite poles of the cell. This separation generates different chromosomal combinations in the daughter cells. There are two alternatives per homologous pair. During Anaphase II, enzymes are activated to break the bonds that keep together the chromosome and separate the sister chromatids.Anaphase (Mitosis) and Anaphase II (Meiosis) are very similar. By separating sister chromatids, anaphase is responsible that each daughter cell has the same number of chromosomes as the parent cell. Some mutations or alterations in the chromatids migration process might occur during anaphase, such as non-disjunction, which is a defect or mistake in the separation of the homologous chromosomes during anaphase of the meiotic division.
DNA found at a crime scene is cut using restriction enzymes and then ran through a gel using electricity. The bands formed on the gel are compared to bands formed 5 suspects to determine which DNA matches.
(A) Genetic Engineering
(B)Artificial Selection
(C)Gel Electrophoresis
C) Gel electrophoresis. To compare DNA samples taken from a crime scene and a suspect, forensic analysts employ the laboratory process known as DNA fingerprinting.
Despite the fact that 99.9% of the human genome is the identical throughout the population, individual differences can be seen in the remaining 0.1% of human DNA. These changeable DNA sequences, also known as polymorphic markers, can be electrophoresed on a DNA gel to create distinctive DNA banding patterns on an agarose gel. Individuals can then be distinguished or correlated using the DNA bands.
You will be tasked with examining the DNA of two suspects that were identified from a crime scene using human DNA evidence (such as skin cells or hair).
Learn more about DNA here:
https://brainly.com/question/14315652
#SPJ1
A vaccine contains a virus that has been killed or weakened and is used to trigger an immune response. Which statement describes how the human body responds to vaccines?
Question 1 options:
Vaccination activates the non-specific immune response by binding to antigens.
Vaccination activates the non-specific immune response by producing blood cells.
Vaccination activates a specific immune response and causes the body to produce antibodies.
Vaccination activates a specific immune response and causes the body to produce disease-fighting bacterial cells.
Answer:
4th one
Explanation:
Remember when you get a vaccine they give you a small amout of the virus so your fighter cells can fight it off more if you get sick or don't but a vaccine helps prevent it.
Why the Carbon must be cycled through the carbon cycle?
Answer:
The carbon cycle describes the process in which carbon atoms continually travel from the atmosphere to the Earth and then back into the atmosphere. Since our planet and its atmosphere form a closed environment, the amount of carbon in this system does not change.
Which of the following is most closely associated with hair-like receptors in the semicircular canals?
a. Balance.
b. Smell.
c. Hearing.
d. Paine.
e. Touch.
A.Balance. Three tiny, liquid-filled tubes in your inner ear called semicircular canals aid in balance by supplying the inner ear with fluid. Your body is then instructed on how to maintain equilibrium by your brain.
Small hairs that line each of the semicircular canals in your skull move as a result of the fluid inside them swirling around as you move your head. Your brain receives nerve signals from these hairs that are converted from the movement of the liquid. The fluid in your semicircular canals will continue to move a little while after you stop spinning, and even though you aren't, your hairs will continue to signal that you are spinning.
The three incredibly tiny semicircular canals' main responsibilities are to sense head position and control balance. They're thought to be a component of the vestibular system.
Learn more about nerve signals here:
https://brainly.com/question/14171101
#SPJ4
Examples of temporary changes
Answer:
Temporary changes are the changes in a particular system for just only a specific time.
Explanation:
Temporary changes are those that are irreversible and occur only for a certain period of time after which things are normalized. These are also referred to as temporary stress.
These changes disrupt the homeostasis and can lead to a physiological reaction.
Temporary changes in the physiological system include:
1. An increase or decrease in heartbeats for short period of time
2. Shortness of breath after exercise
3. Flickering or watering of eye due to a foreign object
4. Perspiration due to heat
5. Enlargement of stomach after meal
Learn more about temporary changes in:
https://brainly.com/question/5329278
#SPJ1
_______ is the capital of the largest country in Europe, Russia
\( \bf \Huge \: Moscow\)
A scientific theory ...A: is an educated guess: an explanation that can be tested by experiment or observation.B: is a broad idea that has been tested many times and is widely accepted among scientists.
A scientific hypothesis is a tentative explanation about a narrow set of phenomena observed in the natural world. It is usually desribed as educated guess but it's better than an educated guess. It has been criticized, tested, verified
Label the following with 1,2,3 for the Newton’s law represent by each description.
1=Newton’s first law
2= Newton’s second law
4= Newton’s third law
In the figure, which areas represent antigen-binding sites?
A. A and B
B. A and C
C. B and C
D. C and D
E. B and D
A. A and B
In figure, A. A and B represent antigen-binding sites. (image attached)
Antibodies are required for presenting the antigen to other lymphocytes for processing or elimination because they have antigen-binding sites that allow them to recognize a particular portion of the antigen. In order to identify the antigen, antibodies require specific regions in their "Y"-shaped chain.
The epitope or antigenic determinant binds to the antibody at the location known as the antigen-binding site or paratope. Each of the heavy and light chains has one constant and one variable domain in it. Fragment antigen-binding (Fab) involves the site. Between two heavy chains and two light chains, each arm of the Y structure can bind to an antigen epitope.
know more about antigen-binding sites here: https://brainly.com/question/6335954
#SPJ4
Which of the following best explains why triploid bananas do not produce seeds?
A) the cells of the banana plant are unable to replicated DNA, thus preventing cell division and limiting growth
B) the banana plants lack enough genetic diversity to properly hybridize
C) the production of gametes is disrupted because of unequal pairing of homologous chromosomes during meiosis
D) the production of seeds is not required because triploid plants produce gametes without fertilization
The following best explains why triploid bananas do not produce seeds: Banana cells are ill-suited to DNA replication, preventing cell division and limiting growth.
Triploid bananas are sterile and extremely sterile plants are barren. However, the banana fruit is produced without seeds and is a placental mammalian companion without fertilization or embryos.
A triploid plant does not produce viable seeds on its own, so the fruit is seedless. Successful seed set is truly rare, as triploids rarely produce eggs or sperm with a balanced set of chromosomes. Bananas, too, are parthenocarpic and produce fruit in the lack of successful fertilization. These triploid bananas reproduce asexually.
Occasionally, triploid banana plants produce mutants. This is an inherited defect that carries her three copies of every chromosome, rendering new plants unable to produce viable seeds.
For more information on triploid bananas, visit ;
https://brainly.com/question/13248140
#SPJ4
A group of scientists has been asked to conduct a study on how an oil spill will affect the surrounding sea life. The scientists decide that the best way to complete the study is to create a model. Which of the following is the most likely reason that the scientists will use a model instead of creating an actual oil spill to study?
A. They think using a model will provide them with more accurate results.
B. They can study the effects of an oil spill without harming surrounding sea life.
C. They can use different species than the plants and animals found in the real ecosystem.
D. They expect the oil spill in their model to have a much greater effect than an oil spill in the natural environment
Answer:
A. They think using a model will provide them with more accurate results Explanation:
In experiments, the scientists will use a model instead of creating an actual oil spill to study because They think using a model will provide them with more accurate results.
What makes an experiment reliable?In most fields of science, for instance, experimental observations must be shown to be reproducible in order to be creditable. Other practices include checking and rechecking data to ensure that the interpretation is valid.
Like theories, scientific laws describe phenomena that the scientific community has found to be provably true. Generally, laws describe what will happen in a given situation as demonstrable by a mathematical equation.
Reliability is how many times you repeat the experiment and come to similar results. If results of an experiment are consistent across many repetitions, then the experiment is deemed reliable.
Learn more about reliability:
https://brainly.com/question/29886942
#SPJ6
Describe what happens in the 5 stages of cell replication.
Mitosis is a process of cell division, whereby a single cell divides into two genetically identical daughter cells. The five stage of mitosis are interphase, prophase, metaphase, anaphase and telophase.
1. Interphase:
The DNA in the cell is copied in preparation for cell division, this results in two identical full sets of chromosomes?.
Outside of the nucleus? are two centrosomes, each containing a pair of centrioles, these structures are critical for the process of cell division.
During interphase, microtubules extend from these centrosomes.
2. Prophase:
The chromosomes condense into X-shaped structures that can be easily seen under a microscope.
Each chromosome is composed of two sister chromatids, containing identical genetic information.
The chromosomes pair up so that both copies of chromosome 1 are together, both copies of chromosome 2 are together, and so on.
At the end of prophase the membrane around the nucleus in the cell dissolves away releasing the chromosomes.
The mitotic spindle, consisting of the microtubules and other proteins, extends across the cell between the centrioles as they move to opposite poles of the cell.
3. Metaphase:
The chromosomes line up neatly end-to-end along the centre (equator) of the cell.
The centrioles are now at opposite poles of the cell with the mitotic spindle fibres extending from them.
The mitotic spindle fibres attach to each of the sister chromatids.
4. Anaphase:
The sister chromatids are then pulled apart by the mitotic spindle which pulls one chromatid to one pole and the other chromatid to the opposite pole.
5. Telophase:
At each pole of the cell a full set of chromosomes gather together.
A membrane forms around each set of chromosomes to create two new nuclei.
The single cell then pinches in the middle to form two separate daughter cells each containing a full set of chromosomes within a nucleus. This process is known as cytokinesis.
I know this is long, but hope it helps!
DNA is the molecule of heredity that contains instructions to build proteins. In 1958, Francis Crick described the dental dogma of molecular biology explaining the process of gene expression. What do A and B represent in the image? DNA --> RNA --> protein
DNA –transcription--> RNA –translation–> protein, is the correct option is A.
Transcription is the term used in genomics to describe the process of making an RNA copy of a gene's DNA sequence. The DNA-encoded protein information is carried by the messenger RNA copy of the gene. In humans and other sophisticated creatures, mRNA moves from the cell nucleus to the cytoplasm for the purpose of encoding the protein.
Translation is the term used in genomics to describe the mechanism through which information contained in messenger RNA directs the addition of amino acids during protein synthesis. On ribosomes in the cell's cytoplasm, mRNA is translated into the string of amino acids that makes up the protein made.
To learn more about transcription follow the link: https://brainly.com/question/30665960
#SPJ4
The complete question is:
DNA is the molecule of heredity that contains instructions to build proteins. In 1958, Francis Crick described the central dogma of molecular biology explaining the process of gene expression. Pick the correct term to fill in the blank space.
DNA -______________-> RNA -_____________-> protein
A. Transcription, translation
B. Amplification, splicing
C. Hybridization, amplification,
D. Translation, transcription