18) The enzyme poly-A polymerase is responsible for adding 3' poly-A tails to eukaryotic mRNAs. This enzyme... A. cuts the mRNA after recognition of the cleavage/polyadenylation signal by CstF and CPSF proteins. B. polymerizes the tail using an RNA template that is part of the enzyme. C. isthesameaspolII D. normally adds about 2000 A nucleotides to the mRNA. E. uses A TP as a substrate.

Answers

Answer 1

Answer:

The correct answer is - option e. uses ATP as a substrate.

Explanation:

Poly-A Polymerase is an enzyme of the family of the DNA polymerase beta (polβ) family which catalyzes the reaction of the addition of AMP from ATP to the DNA polymerase beta (polβ) family.

ATP+RNA-3'OH--------->Pyrophosphate + RNApA-3'OH.

In this reaction, after the mRNA is cleaved, the Poly-A Polymerase template-independently adds about 200 A nucleotides (from ATP) one by one.


Related Questions

hi i am swag? dghfjyfhvfhtd

Answers

Answer:

yes brainliest

Explanation:

yeah ur swag , so stop crying over them.




step by step explanation:

During photosynthesis green plants produce

Answers

Answer: carbon dioxide

Explanation:

Answer:

Oxygen

Explanation:

Think about your daily water use. Where could you conserve? Do you know where your fresh water comes from?

Answers

What we humans can do is turn off our sinks when we aren’t using them. Fresh water comes from the ground.

which of the following is included in the biosphere a the atmosphere gases me the hydrosphere water , lithosphere rock and mineral or D all of these are included in the biosphere ​

Answers

Answer:

D, all of these are included in the biosphere

why is this technique Punnett squares used to calculate the probability of genotypes and phenotypes of one child. In other words, why is it inappropriate to say "Two out of four of their children will have brown hair?

I don’t understand this help meeee

Answers

Answer:

A Punnett square allows the prediction of the percentages of phenotypes in the offspring of a cross from known genotypes. A Punnett square can be used to determine a missing genotype based on the other genotypes involved in a cross. It is inappropriate to say  "Two out of four of their children will have brown hair because the genes could are not always going to give you what you think you are going to get. Using punnett squares just predicts the outcome, but doesn't necessarily know 100%

Explanation:

Instructions: 1 Using the DNA sequence, make a complementary RNA strand from both the human and the cow. Write the RNA directly below the DNA strand (remember to substitute Us for Ts in RNA) 2. Use the codon table posted below (or the circular one on the first page) to determine which amino acids are assembled to make the insulin protein in both the cow and the human. Human DNA DNA CCA TAG CAC GTT ACA ACG TGA AGG AAA RNA GGU GLY Amino acid Cow DNA DNA CCA TAG CAT GTT ACA ACG CGA AGG GAC RNA Amino acid​

Answers

Answer:

Please find the complete table attached as an image

Explanation:

This task is describing the processes of transcription and translation, which are the two processes involved in gene expression. The DNA of a human and cow is given in the table of the attached image and we're asked to transcribe into a complementary RNA, and subsequently translate into an amino acid using the CODON table (genetic code).

- Transcription is the process whereby DNA is used as a template for the synthesis of RNA based on complementary base pairing i.e. A-U, G-C, T-A etc.

- Translation is the process whereby RNA transcript is used to synthesize an amino acid sequence. The mRNA is read in a group of three nucleotides called CODON, where each of this codon specifies an amino acid.

The table has been completed and attached below. Note that in the amino acids row;

GLY means Glycine

ILE means Isoleucine

VAL means Valine

GLN means Glutamine

CYS means Cysteine

THR means Threonine

SER means Serine

PHE means Phenylalanine

ALA means Alanine

LEU means Leucine

(T/F) Carbon, hydrogen, sodium, and oxygen make up the majority living organisms.
True
False

Answers

Answer:

False

Explanation:

The majority are oxygen, carbon, hydrogen, nitrogen, calcium, and phosphorus

The answer is 1 - true

Which two organisms are most closely related?
1. B and C
2. A and B
3. B and D
4. A and D

Answers

Answer:

B and C

Explanation:

Both of these organisms are part of the Canis genus.

Hope this helps :)

Emily has a maternal grandfather who is colorblind, which is an X-linked
recessive trait. Everyone else in her family sees normally. Emily's mom is
expecting a new baby girl. What is the chance that the new baby will also
be colorblind?

A. There is no chance that the new baby girl could be color blind.

B. There is no way to determine this from the information provided.

C. There is a 25% chance that the new baby girl will be colorblind.

D. There is a 50% chance that the new baby girl will be colorblind.

Answers

Answer:

A

Explanation:

the father doesn't have the trait and since it's recessive, there's no way the baby could have it even if the mother carries it from the grandfather.

There is a 25% chance that the new baby girl will be colorblind. Therefore, the correct option is C.

What is colorblindness?

Color blindness is an X-linked recessive trait. This means that the gene responsible for color blindness is located on the X chromosome, and the trait is expressed only when there are two copies of the gene, one on each X chromosome, in females. Males have only one X chromosome, so they will express the trait if they inherit the colorblind gene.

In Emily's family, her maternal grandfather is colorblind. This means that Emily's mother is a carrier of the colorblind gene, since she does not have the trait herself. Emily's father must have two normal copies of the gene, since he does not have color blindness.

When Emily's mother and father have a child, there are four possible combinations of their genes that the child could inherit:

Normal X from mother, Normal X from father (25% chance)

Normal X from mother, Colorblind X from father (25% chance)

Colorblind X from mother, Normal X from father (25% chance)

Colorblind X from mother, Colorblind X from father (25% chance)

Only the last combination would result in a colorblind female, since she would have two copies of the colorblind gene. Therefore, the chance that the new baby girl will be colorblind is 25%.

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Why is breaking and rearranging bonds in the process of photosynthesis and cellular respiration important? WILL GIVE BRAINLIEST

Answers

Answer:

Breaking and rearranging bonds in the process of photosynthesis and cellular respiration is important because energy is released when bonds are broken in both processes. This energy is used to fuel cellular activities. Bonds are rearranged in the process of photosynthesis to make molecules of glucose; this glucose is used to fuel the process of cellular respiration, in which bonds are rearranged to form molecules of water and carbon dioxide.

In photosynthesis and cellular respiration breaking and rearranging, bonds release energy.

How is the energy released in respiration?

ATP, NADH, and FADH are used to store the energy that is produced when carbon bonds are broken and rearranged in living things. Every time you exhale, carbon dioxide is expelled because cells cannot utilize it.

The extremely valuable ATP molecules are readily available to fuel cellular activity. Sugars are broken down by animal and plant cells to produce useful energy.

By severing chemical bonds and building new ones while rearranging atoms, these and other chemical processes transform materials into other compounds.

Therefore bonds release energy so breaking and rearranging bonds in the process of photosynthesis.

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What are some common properties that most terriers share?

Answers

Answer:melting point, density, color, hardness, flammability, and reactivity with acid. What are examples of non-characteristic properties? What are two common properties that most terriers share?

Explanation:

The science that specializes in naming and classifying organisms is

Answers

Answer:

taxonomy

Explanation:

PLEASE HELP!!

How is a karyotype useful?

Answers

Karyotyping can be used to detect a variety of genetic disorders. For example, a woman who has premature ovarian failure may have a chromosomal defect that karyotyping can pinpoint. The test is also useful for identifying the Philadelphia chromosome. Hope this helps :)

Mat
Look around your school. What are some things that are made of matter?
How do you know?

Answers

Answer:

everything even us cause matter takes up space and we take up space

Explanation:

Everything is made of matter

If an organism inherits 1 dominant allele from one parent and 1 recessive allele from the other parent, what is it called?

Answers

Answer:

heterozygous

Explanation:

An allele is a variant form of a gene. Some genes have a variety of different forms, which are located at the same position, or genetic locus, on a chromosome. Humans are called diploid organisms because they have two alleles at each genetic locus, with one allele inherited from each parent. Each pair of alleles represents the genotype of a specific gene. Genotypes are described  as heterozygous if the two alleles differ.

HELP!
Explain why siblings may share similarities but are not identical.

Answers

Answer:

recombination

Explanation:

Since of recombination, kin as it were share approximately 50 percent of the same DNA, on normal.  So whereas organic kin have the same family tree, their hereditary code can be distinctive in at slightest one of the zones looked at in a given test. That's genuine indeed for intimate twins.

Siblings share similarities because they inherit genetic material from the same two biological parents, who each contribute half of their genetic material to their offspring. Therefore, siblings share a similar genetic makeup, and this can result in some shared physical and behavioral traits.

What is the reason behind a non-identical sibling?

Siblings are not identical because each parent can contribute different variations of genes to each child, resulting in unique combinations of genetic material. Moreover, the process of meiosis, which is the formation of reproductive cells, is a random process, meaning that the chromosomes from each parent can mix in different ways during the formation of the offspring's cells. Therefore, each sibling inherits a unique combination of genetic material, leading to individual differences in physical and behavioral traits.

Hence, siblings share similarities because they inherit genetic material from the same two biological parents, who each contribute half of their genetic material to their offspring. Therefore, siblings share a similar genetic makeup, and this can result in some shared physical and behavioral traits.

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A monohybrid cross is

Answers

Answer:

A monohybrid cross is a cross between two organisms with different variations at one genetic chromosome of interest.[1][2] The character(s) being studied in a monohybrid cross are governed by two or multiple variations for a single locus. To carry out such a cross, each parent is chosen to be ratio.

Explanation:

As precipitation infiltrates into the subsurface soil, it generally forms an unsaturated zone and a saturated zone. In the unsaturated zone, the voids-that is, the spaces between grains of gravel, sand, silt, clay and cracks within rocks-contain both air and water. Although a lot of water can be present in the unsaturated zone: why can't this water be pumped by wells
A) Soils, like clay, absorb water quickly
B) Sinkholes collect water above the water table.
C) Land with no slope lets water runoff at a fast rate.
D) If its not any of the other its this

Answers

Answer:

Water in the soil zone is used by plants in life functions and leaf transpiration, but it also can evaporate directly to the atmosphere

Answer:

D. Water in the soil zone is used by plants in life functions and leaf transpiration, but it also can evaporate directly to the atmosphere.

Explanation:

because of usatestprep

the role of a producer is to :
A)eat orher consumer
2)provide food for carnivores 3)make carbon dioxide
4)provide food for themselves and other organism

Answers

Answer:

4)provide food for themselves and other organisms

Explanation:

Light-skinned people generally have a greater proportion of which pigment in their skin?

Keratin

Pheomelanin

Eumelanin

Carotene

Answers

Answer:

Pheomelanin

Explanation:

Dark-skinned individuals produce more melanin than those with pale skin.

Light-skinned people typically have a greater proportion of pigment in their skin Pheomelanin, Dark-skinned persons produce more melanin than those with pale skin.Thus, option "B" is correct

What is the difference between pheomelanin and eumelanin?

Eumelanin is black or brown tint and pheomelanin is red or yellow pigment.

Individual who create lots of pheomelanin tend to have lighter skin, often because of freckling.

Freckles occur when melanocytes clump together. Melanocytes are generally scattered rather evenly in the skin.

Thus, option "B" is correct,  Dark-skinned individuals produce more melanin than those with pale skin.

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13. Which DNA strand can base pair with this DNA strand A-T-G-C-T-A ?

Answers

Explanation:

T-A-C-G-A-T 100% correct

Which is NOT an example of a climate proxy?

Question 26 options:

ice cores


lake water


fossil pollen


tree rings

Answers

c. fossil pollen
because ice cores, lake water, and tree rings all have something to do with climate.

LAKE WATER is NOT an example of a climate proxy.

A climate proxy refers to any preserved physical feature of the past, which can be used to study climatic conditions over a determined period of time.

These features (climate proxies) help to reconstruct past meteorological conditions and thus understand how Earth has been affected by climatic factors during different periods of time.

Some organisms that can be used as climate proxies include diatoms (algae), forams, and corals.

In conclusion, LAKE WATER is NOT an example of a climate proxy.

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What reaction takes place in a chloroplast? In mitochondria?

Answers

Answer:

In the photosynthetic electron-transfer reactions (also called the “light reactions”), energy derived from sunlight energizes an electron in the green organic pigment chlorophyll, enabling the electron to move along an electron-transport chain in the thylakoid membrane in much the same way that an electron moves along

Explanation:

A healthy diet include 7 food groups, which of the following is a food group helps us to have healthy skin ?
1Carbohydrate

2Fats

3Protein

4vitamin C

Answers

Answer:

Fats

Explanation:

Fatty fish. Fatty fish, such as salmon, mackerel, and herring, are excellent foods for healthy skin. They're rich sources of omega-3 fatty acids, which are important for maintaining skin health (

fats specifically fatty acids

If you wanted to study the surface of a newly discovered bacterial cell, which microscope would you use?
Modern light microscope
Any of the above
Scanning electron microscope
Transmission electron microscope

Answers

Answer:

Modern light microscope

Explanation:

because light microscope has course adjasment

Which of the following is an example of terrestrial plant

a.talahib
b.sea lettuce
c.duckweeds
d.algae​

Answers

Answer:

algale is the right response

The answer is B. Sea lettuce

8. It is a combination of different organ
that has the same function.​

Answers

Answer:

It is called an organ system

Answer:

nose and lungs has same function of respiration

Which one of the following plate boundary types would not be volcanically active?
a. ocean-ocean convergent
b. transform
c. ocean-continent convergent
d. divergent

Answers

I believe the answer might be B. transform

I hope I helped any, have a lovely day!!! (:

It’s B I hope I’m correct

The cardiovascular system is comprised of 2 body systems that work together to...
send electrical signals to our lymphatic system to fight of pathogens.
B. provide movement for the body from responses and stimulus to and from the brain.
C.
pump blood, which carries nutrients and oxygen to the cells of the body.
D. breaks down nutrients to circulate towards our cells for ATP.

Answers

Answer:

C.

pump blood, which carries nutrients and oxygen to the cells of the body.

Which of the following statements is true regarding the "Egg Slap" demonstration on Tuesday and how it relates to Newton's First Law of Motion?

A.
The external force acting upon the plate and the egg was the applied force from the hand hitting both of them away.

B.
The external force acting upon the egg was the applied force from the hand hitting the plate out of the way.

C.
The external force acting upon the plate was the applied force from the hand. The external force acting upon the egg was gravity.

D.
The external force acting upon the egg was the applied force from the hand. The external force acting upon the plate was gravity.

Answers

Answer:

Probably B, if not, A

Explanation:

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