Which of the following enzymes adds complimentary DNA nucleotides to a template strand? A. Helicase B. DNA polymerase III C. RNA polymerase I D. DNA polymerase I Which of the following are associated with transcription? 1) mRNA produced in nucleus of cell II) tRNA binds to specific amino acid. III) RNA polymerase binds to DNA sequence IV) Transcription factors bind to stop codon V) Introns are spliced from tRNA sequence. A. I and III B. I, II, and IV OC. I, II, III and V D. I, II, IV and V The TRP operon is a model that demonstrate mechanisms controlling which of the following aspects of gene expression. A. Translation of RNA into amino acids B. DNA replication in bacteria C. alternative splicing D. Transcription of mRNA from a gene. If two genes are linked you would expect to see more of which of the following in offspring? OA. More offspring that have recombinant genotypes than parental types OB. More offspring that have parental genotypes than recombinant types OC. A greater affect in males than females. D. Equal amounts of recombinants and parental types
Answers
The enzyme that adds complementary DNA nucleotides to a template strand is DNA polymerase III. Hence, the correct option is B. DNA polymerase III.
The DNA polymerase III is a holoenzyme with many subunits that work together to copy DNA. This enzyme is responsible for adding nucleotides to the new DNA strand during replication. During replication, the double helix is unwound by an enzyme called helicase, and the two resulting single strands act as templates for the new DNA strands. DNA polymerase III then attaches to the template strand and adds complementary nucleotides.
Regarding the given terms, following are the correct options:For the terms associated with transcription, the correct option is A. I and III. The transcription is the process of synthesis of RNA from a DNA template. The process occurs in three stages: initiation, elongation, and termination. RNA polymerase binds to the promoter site, which is present in the DNA sequence upstream of the gene's coding sequence. Introns are spliced from the primary RNA transcript, not tRNA.The TRP operon model demonstrates the mechanism controlling the transcription of mRNA from a gene.
Hence, the correct option is D. Transcription of mRNA from a gene.Operons are a group of genes controlled by the same regulatory mechanism. The trp operon is an operon present in bacteria that regulates the tryptophan biosynthesis. It contains genes that encode enzymes responsible for the biosynthesis of tryptophan.
When tryptophan is available in the environment, it binds to the repressor protein, which inhibits the transcription of the trp operon genes. In the absence of tryptophan, the repressor protein is inactive, allowing RNA polymerase to bind to the promoter site and initiate transcription of the operon. If two genes are linked, more offspring that have parental genotypes than recombinant types are expected.
Hence, the correct option is B. More offspring that have parental genotypes than recombinant types. The genes present on the same chromosome are linked genes. The crossing over of linked genes during meiosis produces two types of gametes. One is recombinant and has a new combination of alleles.
The other is parental and has the same allele combination as the original chromosome. If the genes are closely linked, the probability of crossing over between them is low, and thus, most offspring will have parental genotypes.
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Related Questions
what is an example of a catalyst?
Answers
Answer potassium permanganate - Hydrogen peroxide will decompose into water and oxygen gas.
Explanation:
Answer:
They include elemental metals and other inorganic substances. ... Examples of inorganic catalysts in chemical reactions include: potassium permanganate - Hydrogen peroxide will decompose into water and oxygen gas. Two molecules of hydrogen peroxide will produce two molecules of water and one molecule of oxygen.
Explanation:
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1. What is definition of a carbohydrate? (In biology terms please)
2. Do disaccharides and polysaccharides undergo a condensation reaction? Are they both connected by a glycosidic bond(s)?
Answers
Explanation:
1. Carbohydrates are the most common type of organic compound. A carbohydrates is an organic compound such as sugar strach and is used to store energy.
2. don't know sry
Carbohydrate is a starchy food which consist of Carbon, Hydrogen and Oxygen in the ratio of 1:2:1. They are also called hydrated organic compounds because Hydrogen and Oxygen is present in the same amount as in the water i.e. 2:1. It is one of the three main classes of food which on hydrolysis gives Glucose.
_____________________________________CONDENSATION:A reaction in which two or more molecules combine to form a large complex molecule, with the loss of a small molecule i.e. water. It is the opposite reaction of hydrolysis.
Disaccharides undergo condensation reaction to produce polysaccharide but polysaccharides do not undergo condensation reaction as they are already in a complex form.Yes, they are connected by the glycosidic bond. A glycosidic bond is a type of covalent bond that joins a carbohydrate to another carbohydrate or other group._____________________________________Best Regards,'Borz'20. Kimberly draws the food web shown. A reduction in the population of which organism
would reduce the food sources available to all of the other organisms? (1 point)
•Squid
•krill
•leopard seal
•humpback whale
Answers
Answer:
Krill would reduce the food source of all other organisms.
Explanation:
The krill limit would affect the food source of the squid making them les plentyfull, and would affect the penguins as well, and the top predators as well.
Answer:
Krill would reduce the food source of all other organisms.
Explanation:
The krill limit would affect the food source of the squid making them les plentyfull, and would affect the penguins as well, and the top predators as well.
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Use the drop-down menus to answer questions about bacteria. Since bacteria are prokaryotes, they have no The outside of a bacterial cell is protected by a structure called a . The provides a rigid structure that gives the cell its shape. The helps to transport ions, nutrients, and waste. allow DNA to be transferred from one bacterium to another.
Answers
Answer:
See the answer below
Explanation:
Since bacteria are prokaryotes, they have no nucleus and membrane-bound organelles. The outside of a bacterial cell is protected by a structure called a capsule. The cell wall provides a rigid structure that gives the cell its shape. The cell membrane helps to transport ions, nutrients, and waste. The plasmids allow DNA to be transferred from one bacterium to another.
The bacteria are microscopic organisms that are generally classified as prokaryotes. The prokaryotes lack nucleus and other membrane-bound organelles, unlike the eukaryotes. The bacteria cells are enclosed in a protective structure known as the capsule. Immediately after the capsule is the cell wall whose components vary depending on whether the bacteria is Gram-positive or negative.
Towards the innermost part of the cell, after the cell wall is the cell membrane. It acts as a channel for the transport of materials in and out of the cell. Some bacteria cells have short, circular, extrachromosomal DNA known as plasmids which can be transferred from one cell to another.
Nucleus
Capsule
Cell wall
Cell membrane
Pili
complex interactions must occur before solar energy is converted into a form of energy humans need to work and perform many life processes truth the sequence that best shows the path of energy
A) radiant energy --> mechanical energy --> chemical energy
B) heat energy --> light energy --> photosynthesis
C) radiant energy --> chemical energy --> mechanical energy
D) mechanical energy --> chemical energy --> radiant energy
Answers
imagine a world without food wtite
write 5 points on it
Answers
Answer:
Without food humans cant live so we cant imagine the world without food. As food is the source of energy .
Identify a human disorder with developmental limitations that results from changes in chromosome number. Explain how nondisjunction leads to changes in chromosome number.
Answers
Answer:
The Klinefelter syndrome is caused by the presence of one extra X chromosome (i.e., XXY males). Developmental limitations of this genetic disorder include: reduced muscle mass, neurodevelopmental problems, hypogonadism, etc. Abnormal chromosome numbers (known as aneuploidies) are usually caused by the nondisjunction of homologous chromosomes during Anaphase I or the nondisjunction of sister chromatids during Anaphase II
Explanation:
The Klinefelter syndrome is the most common sex chromosomal disorder in males, which is caused by the presence of an extra X chromosome (i.e., males with a XXY karyotype). This genetic disorder has many effects on development, including small testes (hypogonadism), weaker muscles, longer arms and legs, larger breasts than normal, infertility, immature development of secondary male sex features, cognitive problems (e.g., speech and language delays), etc. A chromosomal disorder occurs when chromosome pairs or chromatids fail to separate during meiosis, thereby producing cells (gametes) with more or fewer chromosomes than normal, a phenomenon known as aneuploidy.
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Two objects are being lifted by a machine. One object has a mass of 2 kg, and is lifted at a speed of 2
m/s. The other has a mass of 4 kg and is lifted at a rate of 3 m/s. What does this tell you about the variable(s) that impact gravitational potential energy?
Answers
Impact on gravitational potential energy is that the object which has greater Kinetic energy will have less potential energy, like object 2 has greater KE and less potential energy and object 1 has less KE and greater potential energy
It is given that
mass of 1 object = 2 kg
speed of 1 object = 2 m/s
mass of 2 object = 4 kg
speed of 2 object = 3 m/s
Kinetic energy = 1/2 x m x v^2
KE(1) = 1/2 x 2 x (2)^2
KE(1) = 1/2 x 2 x 4 = 4 Joule
KE(2) = 1/2 x 4 x (3)^2
KE(2) = 1/2 x 4 x 9 = 18 Joule
As the height increases, there is an increase in the gravitational potential energy and a decrease in the kinetic energy . The kinetic energy is inversely proportional to the potential energy
Hence, Kinetic energy of 1 object is 4 Joule and another is 18 Joule
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what is one property of viruses that makes it difficult to cure viral infection
Answers
Active transport makes it possible for cells to:______.
a. transport out secretory products and waste material against concentration gradients.
b. take up nutrients from the environment against concentrations gradients.
c. maintain nonequilibrium intracellular concentrations of ions such as Na , K , Ca2 , and H .
d. establish an electrical potential across the membrane.
e. All of the above are correct.
Answers
Answer:
e. All of the above are correct.
Explanation:
Active transport is a type of transport in living systems in which molecules/ions/substances are moved or transported against their concentration gradient i.e. from a region where the substance is LOW to a region which it is HIGH, across a membrane. Since molecules are transported across a memembrane against their concentration gradient, an energy input in form of ATP is needed to do so.
Active transport is used in living systems to transport out secretory products and waste material against concentration gradients, take up nutrients from the environment against concentrations gradients etc. Since ions are substance moved by active transport from a low region to high region, there is an imbalance in the intracellular concentration of ions, such as Na, K etc.
Since there is no equilibrium in the concentration of ions on opposite sides of the membrane, an electric potential is formed across the membrane i.e. one part of the membrane will be more positively charged than the other.
How can an atom, that was once part of the rat's body, could become part of a bird's body?
Answers
Answer:
if the bird eats the rat
Explanation:
Imagine that you are going to interview a local seed farmer for a piece you’re writing about the state of seed farming and agriculture today. What type of questions would you ask? Come up with five specific questions that you would ask in this interview and briefly explain the purpose behind each question.
Answers
1. What led you to become a seed farmer, and what has kept you in the profession? This question aims to understand the farmer's personal motivations and experiences in seed farming.
2. What challenges have you faced in seed farming, and how have you addressed them? This question aims to understand the farmer's perspective on the current state of seed farming, including any challenges that they may have encountered and how they have overcome them.
3. How have recent changes in climate and weather patterns impacted your seed farming operations? This question aims to understand how climate change is affecting seed farming, particularly in terms of adapting to changing weather patterns.
4. How do you ensure the quality and purity of the seeds you produce, and what measures do you take to maintain them? This question aims to understand the farmer's perspective on seed quality and purity, including any measures they take to ensure that their seeds are viable and free of contamination.
5. What role do you see seed farming playing in the future of agriculture, and how do you envision the industry evolving in the coming years? This question aims to understand the farmer's vision for the future of seed farming and agriculture, including any potential changes or developments that they anticipate in the industry.
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how long does it take for collagen peptides to work?
Answers
Collagen peptides are made to work quickly. It will have entered the bloodstream, according to experts, 15 minutes after taking a collagen supplement.
It will reach the muscles after 30 minutes, and the proteins will reach their maximum capacity after 90 minutes. Also noticeable will be an increase in energy.
The primary structural protein in the extracellular matrix found in the numerous connective tissues of the body is collagen. It makes up between 25% and 35% of the protein in the entire body, making it the most prevalent protein in mammals and the major building block of connective tissue. The collagen helix, also known as the collagen molecule, is made up of three amino acids bonded together to form an elongated fibril. It is mostly present in connective tissue, which includes skin, tendons, ligaments, cartilage, and bones.
Collagen peptides taken orally appear to increase skin elasticity and moisture in older adults. Taking collagen peptides might potentially make wrinkles less noticeable, but this advantage is probably minimal. Osteoarthritis. Collagen peptides taken orally may help persons with knee osteoarthritis feel slightly less pain and have better joint function.
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mrs. smith's treatment for cancer is showing promise. the results of her first treatment showed a 50% reduction of tumor cells. why would only one more treatment not be enough to eradicate the cancer from her body?
Answers
Cancer treatments typically involve multiple rounds of treatment in order to ensure complete eradication of the cancer from the body.
While Mrs. Smith's first treatment showed promise with a 50% reduction of tumor cells, it is unlikely that only one more treatment would be enough to completely eradicate the cancer from her body.
This is because cancer cells can be resistant to treatment and may continue to grow and spread even after initial treatment.
Additionally, multiple treatments may be necessary to ensure that all cancer cells have been destroyed, especially if they have spread to other parts of the body.
Hence, while Mrs. Smith's initial results are promising, it is important to continue with multiple rounds of treatment to increase the chances of complete eradication of the cancer.
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How does cell division benefit the human body? Check all that apply.
Answers
Answer:
The applications are:
Explanation:
1;To increase the number of cells in the body
2;To ensure that human being have the same number of chromosomes in each generation through meiosis
3;To ensure growing h and development in human body since it increases the number of cells in the body
energy loss happen when a filament bulb glow. Write a situation where this energy is used properly. 20 pts
Answers
Answer:
When turning electrical energy into light energy.
Explanation:
When the filament heats up and becomes red-hot as a result of opposing and resisting electricity, it begins to glow and therefore turns electrical energy into light energy.
how do substances like carbon dioxide and water move in and out of cell?
no links please!
Answers
Answer:
Osmosis.
Explanation:
The substances like carbondioxide gas and water move inside and outside of the cell through a semi-permeable membrane of the cell is called osmosis. Osmosis is a type of diffusion in which molecules moves from higher concentration to lower concentration through a semi-permeable membrane of the cell. The concentration of carbondioxide gas is higher inside the cell due to the process of respiration moves outside the cell while on the other hand, water moves inside and outside of the cell when it is needed.
the sequence cugac is often found at branch points in pre-mrna introns. although a is the usual branch point, we've seen that the g can serve as a substitute branch point when the a is replaced with da. however, the replacement of a with arabinosyl-a completely blocks splicing. explain why splicing can occur in the presence of da, but not in the presence of the arabinosyl-a
Answers
The replacement of the typical branch point "A" with deoxyadenosine (DA) allows splicing to occur because it retains the essential features for spliceosome formation. However, the introduction of the modified base arabinosyl-A disrupts the necessary interactions, preventing splicing and blocking the removal of introns from the pre-mRNA.
In pre-mRNA splicing, the branch point sequence plays a crucial role in the formation of the spliceosome, which is responsible for removing introns and joining exons together. The typical branch point sequence is "YNYURAY" (where Y represents pyrimidine bases, N represents any base, and R represents a purine base), with "A" being the most common base at the branch point. In the case you mentioned, the sequence "CUGAC" is often found at branch points in pre-mRNA introns. Normally, when the branch point "A" is replaced with "DA" (deoxyadenosine), splicing can still occur.
However, when the "A" is replaced with "arabinosyl-A" (a modified form of adenosine known as Ara-A), splicing is completely blocked. This is due to the structural differences between arabinosyl-A and deoxyadenosine. Arabinosyl-A contains an additional sugar (arabinose) attached to the ribose sugar of adenosine, which alters its conformation and interactions with the spliceosome. The modified structure of arabinosyl-A disrupts the proper recognition and binding of the spliceosome components.
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How many fish are in this pond?
Answers
Answer: One
Explanation: The only fish that I see is in the question that you just asked.
How many fish are in this pond?
Well, 1.. There's no attached image.. So I'm not sure.
But 2, It's probably 69 fish in there. ;)
give me an example of an acute, obtuse, and right angle in real life....
Answers
Answer:
ummmm..... Ur moms legs opening wide
Explanation:
Answer:
A fat women she has all the angles in her
Explanation:
Jorge is testing a mineral by seeing whether it can be scratched by a penny. What property of the mineral is Jorge testing?
A.
color
B.
luster
C.
streak
D.
hardness
Answers
Answer:
C - streak
Explanation:
color has nothing to do with scratching
luster is the shine of an object
hardness can be tested by, for example, driving over it with a car
How are a substance and a solution similar? How are they different?
My friends my account is oOMissCuteOo not oOMuskaOo ok!
Answers
The solution and substance are similar because the solution is a homogenous mixture.
What are the similarities between solution and substance?A substance and solution are similar to each other in many ways because a solution is a homogeneous blend of two or more elements and/or compounds. Whereas a substance is an element or compound, therefore, a solution is a homogeneous combination of two or more substances.
A substance is different from solution because substance is an element or a compound whereas a solution is made up of combination of two or more substances. In a mixture, substances are generally just mixed and are not completely dissolved. In a solution, substances are dissolved completely and they cannot be filtered out.
So we can conclude that the substance and a solution are different as well similar to each other because the solution is a homogeneous mixture whereas substance is an element or a compound.
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please help I really ask for your help.what insects don't have biting and chewing mouth parts.
Answers
What is the significance of light-dependent reaction products for the production of glucose?
Answers
Explanation:
The endergonic (def) light-independent reactions of photosynthesis use the ATP and NADPH synthesized during the exergonic (def) light-dependent reactions to provide the energy for the synthesis of glucose and other organic molecules (def) from inorganic carbon dioxide and water.
The major category(ies) of hypersensitivity that typically involve a B-cell immunoglobulin response is (are) ________.
Answers
The major category of hypersensitivity that typically involves a B-cell immunoglobulin response is Type II and Type III hypersensitivity reactions.
B-cells create antibodies against target antigens found on the surface of cells or in the extracellular matrix in Type II hypersensitivity, which causes cellular or tissue damage. A few types of drug-induced hemolytic anemia and autoimmune hemolytic anemia are examples of Type II hypersensitivity.
In type III hypersensitivity, B-cells create antibodies that interact with soluble antigens to create immunological complexes. These immune complexes may build up in tissues and lead to tissue inflammation and damage. Examples of Type III hypersensitivity include various forms of glomerulonephritis and systemic lupus erythematosus.
It is important to note that B-cell immunoglobulin responses are not present in other forms of hypersensitivity reactions, such as Type I (immediate) and Type IV (delayed).
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Evaluate three ways in which conflict can help to build positive relationship between youth and their parents
Answers
Answer:
Conflict can help to build a positive relationship between parents and youth due to the fact that conflict can lead to communication. When conflict arrives you need active listening, communication, and responsibility to approach any issue that may occur.
Explanation:
What would happen to our moon if gravity ceased to exist?
A.Our moon would fly off into space in a straight line.
B. Our moon would crash into Earth.
C. Our moon would continue to rotate around the Earth.
D. Our moon would not be affected.
Answers
Answer: A
Explanation: gravitation keeps moon in circular orbit.
Without gravitational force Moon would move in
Linear path.
Sutures connect all the bones of the skull, except the __________.
-nasal bone
-mandible
-vomer
-maxilla
Answers
Sutures are fibrous joints that connect the bones of the skull. These joints allow for some movement during development, but eventually fuse together to create a strong, immovable structure.
The skull is made up of several bones, including the frontal, parietal, occipital, temporal, sphenoid, nasal, maxilla, mandible, and vomer bones. Sutures connect all of these bones together, except for the mandible, which is the lower jawbone. The mandible is connected to the rest of the skull by a different type of joint called the temporomandibular joint (TMJ). The TMJ allows for the movement of the mandible during activities such as chewing, speaking, and yawning. It is important to note that while the mandible is not connected to the rest of the skull by sutures, it still plays a crucial role in the overall structure and function of the skull.
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*
2. Which concept is best illustrated in the flowchart below?
Survival
of the
fittest
Struggle for
existence
Overproduction
+
+
limited niches
Change of
species
or
new species
hereditary
variation
environmental
change
genetic engineering
natural selection
dynamic equilibrium
photosynthesis
Answers
Explanation:
Natural selection is a change in species to adapt to environmental change with heredity variations, hence option b is correct.
What is natural selection?The development of a population's heritable features across generations is a fundamental process of evolution.
Natural selection requires the occurrence of four factors: reproduction, inheritance, variation in organism fitness, and variation in individual traits among population members.
Natural selection happens spontaneously if they are satisfied. Neutral evolution, or random walk, is the most well-known method of evolution that has been identified that does not involve natural selection.
Therefore natural selection organisms' fitness, and variation in individual traits among population members, hence option b is correct.
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Please answer quickly, timed test!!
Which term is correctly paired with its role in the body?
A) insulin – a sugar that regulates blood glycogen levels
B) ADP – a molecule that releases energy when it forms ATP
C) glycogen – a hormone found in blood that regulates blood glucose levels
D) glucose – a sugar found in blood that can be broken down to produce ATP
Answers
Answer:
D.
Explanation:
insulin is not found in the body
Answer:
D
Explanation:
because glycogen is NOT a form of sugar so insulin wouldn't regulate it the other person knows nothing about the body (no offense)
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