Answer:
D. Ankrd 1 is binding to chromatin, recruiting proteins that remove acetyl groups, and silencing transcription of that region of DNA.
Explanation:
Ankrd is a binding chromatin, there is recognition that mutation is deregulating the chromatins. The proteins remove acetyl groups and then the region for DNA transcript. The recruitment chromatin is associated with proteins are enzymes which are chemical moieties.
Answer:
Ankrd1 is binding to ARs and preventing ARs from binding to the promoter, which inhibits mRNA transcription
Explanation:
Just took the test :)
Which of the following explains how different environments support different varieties
of organisms?
A. Every environment has the same basic features.
B. Every organism has adaptations that allow them to survive in a certain type of
environment.
C. All organisms have the same basic needs.
D. Environments change to fit the needs of all the organisms that live in them.
Answer:
the answer is B
Explanation:
Answer:
B
Explanation:
Many traits (phenotypes), like eye color, are controlled by multiple genes. If eye color were controlled by the number of genes indicated below, how many possible genotype combinations would there be in the following scenarios?
a. 5 Genes:
b. 10 Genes:
c. 20 Genes:
Answer:
Explanation:
If there are 5 genes, let us assume that they are in the alternative forms with 2 possible gets for each five... So we have
2 possible gametes for each five = 2 to the power of 5 = 32 gametes
Then genotypes = 3 to the power of 5 = 243
The same also for 10 genes
2 possible gametes for each 10 = 2 to the power of 10 = 1024 gametes
Then genotypes = 3 to the power of 10 = 59,049
The same also for 20 genes
2 possible gametes for each 20 = 2 to the power of 20= 1,048,576
Them genotypes = 3 to the power of 20 = 3,486,784,401
Many traits (phenotypes), like eye color, are controlled by multiple genes. In the following scenario, the number of genes are:
a. 5 Genes: 243 genes
b. 10 Genes: 59,049 genes
c. 20 Genes: 3,486,784,401 genes
What are genes?Genes are small hereditary materials bound in tiny beads like fashion and make a chromosome.
Now, the number of genes in the given scenario is:
a. 5 Genes: If there are 5 genes, let us assume that they are in the alternative forms, with 2 possible gets for each five.
So, 2 possible gametes for each five = 2 to the power of 5 = 32 gametes
The genotypes combinations = 3 to the power of 5 = 243
b. 10 Genes: 2 possible gametes for each 10 = 2 to the power of 10 = 1024 gametes
The genotypes combinations = 3 to the power of 10 = 59,049
c. 20 Genes: 2 possible gametes for each 20 = 2 to the power of 20 = 1,048,576
The genotypes combinations = 3 to the power of 20 = 3,486,784,401
Therefore, the number of genes is:
a. 5 Genes: 243 genes
b. 10 Genes: 59,049 genes
c. 20 Genes: 3,486,784,401 genes
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8. In cocker spaniels, the following genotypes and phenotypes are found: AABB = white, A_bb = red, aabb = lemon, AaB_ = black, aaB_ = liver, AABb = grey a. A red female is mated with a liver-colored male, and one of the pups produced is lemon-colored. What are the genotypes of the parents? b. What proportion of these offspring would be expected to be black? c. A black male is mated with a liver-colored female, and they produce the following pups: 3/8 black 1/8 red 3/8 liver-colored 1/8 lemon-colored What are the genotypes of the two parents? d. If two cocker spaniels of the genotypes AaBb x AABb are mated, and eight pups are born, what is the most likely distribution of coat colors in that litter?
a. The lemon-colored pup indicates that both parents must be heterozygous for the "a" gene. Therefore, the genotypes of the female and male are A_bb and aaB_, respectively.
b. If A_bb (red) and aaB_ (liver) are mated, all of the offspring will be heterozygous for both traits (AaBb). Therefore, 25% (or 1/4) of the offspring are expected to be black.
c. The genotypes of the two parents can also be determined using a Punnett square. The black male must be homozygous for both the "A" and "B" genes (AABB), and the liver-colored female must be heterozygous for both genes (AaBb).
d. If two AaBb cocker spaniels are mated, the most likely distribution of coat colors in the litter would be:
9/16 (or 56.25%) black (A_B_)3/16 (or 18.75%) grey (AABB, AaBB, AABb)3/16 (or 18.75%) liver-colored (aaB_)1/16 (or 6.25%) lemon (aabb)What is Punnett square?
A Punnett square is a tool used in genetics to predict the possible genotypes and phenotypes of offspring resulting from a cross between two individuals. The Punnett square is a table that shows all possible combinations of alleles from the two parents and the probability of each offspring having a particular genotype.
The Punnett square allows geneticists to determine the probability of an offspring inheriting a particular trait or disease based on the genetic makeup of its parents. It is a useful tool for predicting the outcome of genetic crosses and understanding the patterns of inheritance of traits.
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Homologous chromosome are paired.
Homologous chromosomes are paired because they carry the same genes in the same order, although the alleles for each trait may differ.
During meiosis, the homologous chromosomes align during prophase I and exchange genetic material through a process called crossing over, which contributes to genetic diversity.In human beings, a pair of homologous chromosomes is present in every cell, one from each parent.
In females, the two X chromosomes are homologous pairs, while in males, the X and Y chromosomes are not homologous pairs since they carry different genes. During fertilization, the homologous chromosomes from the two parents pair up, and each gamete contains only one of each homologous chromosome.
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One of the challenges facing the world today is supplying enough food for the human population. Farming with genetically modified plants is a possible solution to this challenge. What is a concern with using GM plants?
A. Farming with GM plants that are resistant to chemical herbicides may lead to overuse of weed-killing compounds.
B. Farming with GM plants requires less land and energy, which may lead to lower food costs and an economic crisis for farmers.
C. GM plants require more insecticide use, which may increase the chance of chemical residues in the food supply.
D. Scientific studies on GM plants are not available so the effects of GM plants are unknown.
Answer:
Option A
Farming with GM plants that are resistant to chemical herbicides may lead to overuse of weed-killing compounds.
Which of the following is/are TRUE about a cell’s plasma membrane? (CHOOSE ALL THAT APPLY.)
Question 3 options:
Plant cells have a cell wall instead of a plasma membrane.
Proteins are embedded in the plasma membrane and contribute to its function.
The exterior of a phospholipid bilayer is hydrophilic, and the interior is hydrophobic (see figure above).
The plasma membrane regulates the movement of molecules and ions into and out of the cell.
Answer:
The plasma membrane regulates the movement of molecules and ions into and out of the cell.
Explanation:
Cell membranes protect and organize cells. All cells have an outer plasma membrane that regulates not only what enters the cell, but also how much of any given substance comes in. Unlike prokaryotes, eukaryotic cells also possess internal membranes that encase their organelles and control the exchange of essential cell components. Both types of membranes have a specialized structure that facilitates their gatekeeping function.
The true statement about a cell’s plasma membrane is that the plasma membrane regulates the movement of molecules and ions into and out of the cell. The correct option is D.
What is a plasma membrane?The plasma membrane or cell membrane is the outer covering of the cell. It is made up of lipids and proteins. Cell membranes serve to separate and group cells. Every cell has an exterior plasma membrane that controls both what and how much of any given material enters the cell.
Eukaryotic cells, unlike prokaryotes, have internal membranes that enclose their organelles and regulate the exchange of vital cell components. Both kinds of membranes have a unique structure that makes it easier for them to perform the gatekeeping job.
Thus, the correct option is D. The plasma membrane regulates the movement of molecules and ions into and out of the cell.
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the scottish fold is a breed of cat with a mutation in a gene involved in cartilage development. the result is that each ear of the cat has a crease, so the ears fall forward and lie against the head instead of standing up like the ears of most small cats. the mutation is a dominant allele.
a cat that is heterozygous for the fold allele mates with a cat that is homozygous for the fold allele.
what are the expected percents of offspring that will have each characteristic?
The expected percent of offspring of the Scottish fold with folded ears is 75%.
How to determine offspring?The Scottish Fold is a breed of domestic cat with a natural dominant gene mutation that affects cartilage throughout the body, causing the ears to "fold", bending forward and down towards the front of the head, which gives the cat what is often described as an "owl-like" appearance.
The fold is inherited as an autosomal dominant trait. This means that a cat with folded ears may have either one (heterozygous) or two copies (homozygous) of the dominant fold gene (Fd). A cat with normal ears should have two copies of the normal gene (fd).
If a cat that is heterozygous for the fold allele mates with a cat that is homozygous for the fold allele, the expected percent of offspring that will have each characteristic are:
25% will be homozygous for the fold allele and will have folded ears.50% will be heterozygous for the fold allele and will have folded ears.25% will be homozygous for the normal allele and will have normal ears.Therefore, the expected percent of offspring with folded ears is 75%.
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The Borderea chouardii plant is one of the rarest plant species in the world. It is only found on the Spanish side of the Pyrenees mountains.
Borderea chouardii plants are either male or female. A specific type of ant carries pollen from the male plants to the females so that seeds can be produced. Another type of ant spreads the seeds so that new plants can grow.
Why is the behavior of these two types of ants important to the Borderea chouardii plant?
A.
The plants must store food to have enough energy.
B.
The plants must excrete waste to get rid of harmful substances.
C.
The plants must reproduce for the species to survive.
D.
The plants need nutrients from the ants so that they can grow.
the answer is :
The plants must reproduce for the species to survive.
Answer:
C
Explanation:
Plants need these ants to help carry their pollen around to grow more flowers
differentiate between food and non-food
Answer:
food is edible
Explanation:
non food is not
Experiment I: Effect of Different Substrates on the Rate of Enzyme Reaction
Consider the structures of the other substrates tested. Suggest reasons why only one elicited a reaction with the enzyme. Think about the active site of the enzyme
The other substrates did not fit the active site of the enzyme, resulting in no reaction.
The reason why only one substrate elicited a reaction with the enzyme could be due to the fact that the other substrates did not fit the active site of the enzyme. Enzymes are highly specific in their action, and they can only catalyze reactions with molecules that fit their active sites.
In the case of the experiment, the enzyme may have a specific active site that only allows the structure of the substrate that elicited a reaction to fit into it. The other substrates may have different structures that prevent them from binding to the enzyme's active site, and as a result, no reaction was observed.
It is also possible that the other substrates were not the optimal substrate for the enzyme, and therefore, the reaction rate was low or non-existent. Enzymes often have a preferred substrate that they can catalyze the reaction with the most efficiency. Overall, the selectivity of the enzyme's active site is likely the reason why only one substrate elicited a reaction with the enzyme in the experiment.
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How many letters are in our alphabet ?
There are 26 letters in the English alphabet.
Number of letters in the English alphabetThe English alphabet is characterized by 26 letters. These letters form the basis of every word in the English language.
Alphabets are defined as a set of symbols or letters that forms the basis of speech or writing in a language. The alphabets of any language usually have a fixed order.
The alphabet of the English language in the correct order is: A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, Q, R, S, T, U, V, W, X, Y, Z.
Every language has alphabet.
The Spanish language has 27The French language has 26The Italian language has 21The Arabic language has 28More on alphabets of language can be found here: https://brainly.com/question/1751367
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What did the discovery of radioactivity do to change the geological time scale?
The discovery of radioactivity was vital as it helped scientists in determining the exact age of some rocks.
Radioactivity refers to the release of energy from the decay of the nuclei of atoms and isotopes. It should be noted that the dates for most rocks are gotten through radiometric methods.
Through radioactivity, scientists can determine the age of rocks in years. Dates were assigned to the scale divisions. An example is Jurassic that began about 200 million years ago.
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6. Members of the kingdom "Protista" are classified
into
A two domains.
C three species.
B three domains.
D three kingdoms.
Answer:
C.
Explanation:
Domain is above Kingdom, so it cannot be A or B. Protista is a Kingdom, so it cannot be D. Therefore it must be C.
Members of the kingdom "Protista" are classified as "C" three species.
Protists are a group of all the eukaryotes that are not fungi, animals, or plants.
What are the characteristics of Protista?They are eukaryotes.Most have mitochondria.They can be parasites.They all prefer aquatic or moist environments.Thus, option "C" is correct.
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Muscle contractions occur when myofibrils
in the muscle shorten and lengthen to make
the muscle contract and extend. Which
types of muscles use these muscle
contractions?
All muscle types
Only smooth muscles.
Hanna was driving northeast at a velocity of 60 km/hr for a half hour. How far did she travel?
Hanna would have covered 30 kilometers in half an hour if she had been travelling northeast at a speed of 60 km/hr.
How can I figure out how far she travelled in a half hour?She can travel 60 km in an hour because her velocity is 60 km per hour. As a result, she covers 30 km in a half hour at her pace.
How do you calculate velocity and speed?The vector quantity velocity (v), denoted by the equation v = s/t, quantifies displacement (or change in position, s), over change in time (t). As shown by the equation, speed (or rate, r) is a scalar quantity that measures the distance travelled (d) over the change in time (t).
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Explain why organisms are more likely to be well preserved in mud than in sand? Justify your response in
two or more complete sentences in the essay box below.
PLS I NEED HELP ASAP!!!
Answer:
Explanation:
Organisms are well preserved in mud because mud has high water holding capacity. It retains water and does not allow oxygen flow which can destroy the remains of organisms. There are some microbes that preserved whose growth are enhanced in water related environment like mud.
But sand cannot retain or hold water. It drains it off and all oxygen bearing water to flow which enhance decay compared to mud. It can't preserve organisms because of the above reasons.
Answer:
Organisms are more likely to be well preserved in mud than in sand because sand allows oxygen that has water(oxygen-bearing water) to flow through it. This type of oxygen speeds up decay. Mud does not have this oxygen so it prevents the flow of water, and keeping oxygen away means it slows decay of the buried organisms.
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You might want to write more and/or change it a little because my teacher only gave me half points for this. :(
Explain how different links can show a relation between two species. Describe evidence that shows other correlations and causations between the species.
Different links show relationships between two species. In the scientific world, there are three types of links, including mutualism, parasitism, and commensalism.
Mutualism is a relationship in which both species benefit. Parasitism is where one species benefits, and the other is harmed. Commensalism is a relationship in which one species benefits, and the other is not harmed or helped.One example of a mutualistic relationship is the bee and flower relationship. Bees collect nectar and pollen from flowers for their food, while at the same time, the bee helps in pollination. The bee gets food from the flower, and the flower is pollinated. This is a mutualistic relationship. A parasitic relationship is the relationship between tapeworms and humans. Tapeworms live inside the host and get their food from the host, thereby, causing harm to the host. Evidence that shows correlation and causation between the species includes physical changes in the organism or adaptations to the environment. For example, an animal that feeds on a certain plant may evolve to have a longer tongue to reach the nectar of that plant. In summary, different links show relationships between species, including mutualism, parasitism, and commensalism. The evidence for the correlation and causation between species includes physical changes or adaptations in the organism or environment.For more questions on species
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why there is no production of cotton in kashmir
Answer:
Cotton seems to have been cultivated in Kashmir till the early years of the 20th century, but the cultivation was discontinued perhaps because of economic non-viability.
Explanation:
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What is the blood group of a person who has neither antigen A nor B but is positive for antigen d
Answer:The blood group of a person who does not have antigen A or B but is positive for antigen D is classified as blood group O positive (O+).
Explanation: In the ABO blood typing system, there are four main blood types: A, B, AB, and O. These blood types are determined by the presence or absence of specific antigens on the surface of red blood cells. Antigens A and B are responsible for blood types A and B, respectively.
If a person lacks both antigen A and antigen B, they are considered to have blood type O. The positive (+) or negative (-) designation refers to the presence or absence of the Rh antigen, also known as the D antigen. A person who tests positive for the D antigen is Rh-positive.
Therefore, a person who does not have antigen A or B but is positive for the D antigen is classified as blood group O positive (O+).
Describe an investigation using flashlights that are all the same?
One investigation using flashlights that are all the same is the Flashlight Investigation which is part of the Light and Shadow Workshop.
This workshop was developed using basic tools such as mirrors, lenses, and flashlights as the basis for explorations that can help build an intuitive understanding of how light works.
The activities are divided into five sessions, although the investigations can be extended well beyond this format. The first session, Flashlight Investigation is outlined here, the other sessions are outlined in separate Instructables.
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Based on the text in the photo
If subjected to sound frequencies of 25,000 to 100,000 cps, which of the following would be least affected
A. A bat.
B. A human being.
C. A house cat.
D. A cheetah.
E. A porpoise.
If a less concentrated initial solution of sodium bicarbonate was used in beaker C, would that solution require more or less bicarbonate to neutralize the acid? Why?
Less bicarbonate would be required to neutralize the acid if a less concentrated initial solution of sodium bicarbonate was used in beaker C.
What is bicarbonate?Bicarbonate is a naturally occurring chemical compound composed of sodium, hydrogen and carbonate ions. It is a salt and a weak acid, and its chemical formula is NaHCO3. Bicarbonate has many uses, including baking, cleaning, medicine, and neutralizing acids. Baking soda, which is sodium bicarbonate, is used in baking as a leavening agent. It acts to create air bubbles in dough, which helps breads and cakes to rise. Bicarbonate is also used in cleaning products as a mild abrasive and a pH buffer.
This is because a less concentrated solution will have fewer moles of bicarbonate per liter of solution, thus requiring less bicarbonate to neutralize the same amount of acid.
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Case study 3: A systematic review on very early breastfeeding initiation and neonatal mortality in 136,047 infants found that breastfeeding initiation 2-23 h
after birth was associated with a 33% higher risk of mortality compared to
breastfeeding initiation ≤1 h after birth, can you explain why this is the may be the case
Delayed breastfeeding initiation can result in missed opportunities for colostrum intake, reduced suckling ability, delayed lactogenesis, and missed opportunities for skin-to-skin contact, which can increase the risk of neonatal mortality.
What is Breastfeeding?
Breastfeeding is the process of feeding a newborn or infant with breast milk from the mother's breasts. Breast milk is the ideal food for newborns and infants, providing all the necessary nutrients, antibodies, and immune factors that a baby needs to grow and develop.
The finding of the systematic review that breastfeeding initiation 2-23 hours after birth is associated with a higher risk of neonatal mortality compared to initiation within 1 hour after birth can be explained by several factors:
Colostrum: The first milk produced by the mother's breast, known as colostrum, is rich in nutrients and antibodies that help protect the newborn from infections and diseases.
Reduced suckling ability: Newborns who do not breastfeed soon after birth may have reduced ability to suckle and may struggle to latch on to the breast.
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what is the resting phase of the cell cycle called?
A. Prometaphase
B. Mitosis
C. Interphase
The resting phase of the cell cycle is called interphase.
Interphase is a critical stage in the cell cycle during which the cell prepares for division by going through different activities such as growth, DNA replication, and protein and organelle production. It is the longest phase of the cell cycle and is separated into three subphases: G1 (Gap 1), S (Synthesis), and G2 (Gap 2).
The cell develops in size, synthesises RNA and proteins, and performs its regular duties during the G1 phase. The cell enters the S phase after passing through the G1 checkpoint. The DNA of the cell is reproduced during the S phase, resulting in the production of two identical copies of each chromosome.
This ensures that during cell division, each daughter cell receives a complete set of genetic material. The cell enters the G2 phase after DNA replication, where it continues to expand and prepares for mitosis.
Interphase is not a real resting phase because the cell is actively engaged in multiple cellular functions. However, because the cell is not visibly dividing at this period, it is commonly referred to as the resting phase.
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Answers
A. a snake and a lizard
B. A tuna and a sparrow
C. A robin and a salamander
D. A frog and a salmon
Answer:
c......... they share the most traits
Which of the following statements is true about taste bud preferences?
A. Taste buds respond exclusively to a certain taste sensation, like saltiness.
B. Taste buds have the ability to respond to all of the taste sensations.
C. Taste buds do not differentiate between bitter and salty sensations.
D. Taste buds have the capability to detect three taste sensations.
A, taste buds have the ability to respond to all of the taste sensations
There are 50 to 100 taste cells in a single taste bud which can represent all five (salty, sour, sweet, bitter, umami) of the taste sensations. A single taste bud not restricted to identify single taste sensations. In our taste cell receptor spread in all other parts.
There are pores in each taste bud that will open and identify the taste of the food. The brain includes the sensation nerves to identify the taste of the food you eat.
Each taste bud contains several taste receptor cells, and these cells are sensitive to specific taste molecules. For example, sweet taste receptor cells respond to molecules that are perceived as sweet, such as sugars. Sour taste receptor cells are sensitive to acidic compounds, while salty taste receptor cells detect salt ions. Bitter taste receptor cells respond to a wide range of bitter substances, and umami taste receptor cells detect the savory taste of glutamate, commonly found in foods like meat, cheese, and mushrooms.
In addition to these primary taste qualities, it's worth noting that taste perception is a complex process that can also involve other factors like temperature, texture, and aroma. These factors can influence our overall perception of taste and contribute to the diversity of flavors we experience when consuming food and beverages.
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While running, certain hippocampal neurons called ____ will be active at particular times during the 20 seconds so the rat can keep track. time cells.
While running, certain hippocampal neurons called Semantic dementia will be active at particular times during the 20 seconds so the rat can keep track. time cells.
Semantic dementia (SD) is a type of frontotemporal dementia characterized by a progressive, modal, and profound loss of semantic knowledge (combination of visual associative agnosia, anomia, surface dyslexia or dysgraphia, and disrupted comprehension of word meaning) and behavioral abnormalities caused by anterior temporal lobe degeneration.
The age at which symptoms of an illness first appear is referred to as the age of onset. The age of onset varies amongst illnesses and may be utilized by a clinician to make a diagnosis. Symptoms of various illnesses may appear in a single or many age groups.
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Graph a population pyramid
Answer:
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In what way is DNA replicated?
A. Dispersive
B. Complete
C. Semi-Conservative
D. Conservative
DNA is replicated in a semi-conservative manner (option C). Details about DNA replication can be found below.
What is DNA replication?DNA replication is the process by which a new strand of DNA is synthesized prior to the process of cellular division.
DNA replication occurs in the S-phase of the interphase stage, before the nucleus of the cell divides.
DNA is replicated in a semi-conservative manner in such a way that one strand serves as a template for the other.
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Organisms participate in group behaviors in order to survive. Which statement best describes how this relates to reproduction?
A. Increased chances of reproduction means increased chances of the individual's survival.
B. Increased chances of survival means increased chances of successful reproduction.
C. The offspring of individuals that reproduce outside of a group are more likely to survive.
D. Individuals that survive outside of a group are more likely to reproduce.