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2 years ago

The c-terminal domain of rna polymerase ii projects away from the globular portion of the protein. why?

1 answer:

4 0

The c-terminal domain of RNA polymerase II is the site where other proteins bind to increase the activity of the polymerase. It is the site where transcription is initiated. These functions can be achieved if the domain is not restricted by the globular portion of the protein.

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In the winter, salt is sometimes spread over icy roads. In the spring, after the ice has melted, grass often dies near these roa

lana66690 [7]

Answer:

Explanation:

In the spring, grass often dies near the roads that have been salted because, after salt has been applied and it fell on grasses, the salts penetstrate through the plant cell, and dehydrate water from the cells of the plant. Which result in loss of water in the cell and this make the cell not to be able to perform it's functions because of loss of water and hence because water us essential for it and it is lost, grasses dies.

7 0

2 years ago

Help please also can you explain if you can

Anestetic [448]

Answer:

DNA Replication:

Duplication of DNA molecule.

Replicate the following strand of DNA:

Original DNA A T G A A C C A T T C A G T A T G G

Complimentary DNA : T A C T T G G T A A G T C A T A C C

Transcription:

Conversion of DNA into mRNA

Transcribe the DNA to make an mRNA molecule

Complimentary DNA : T A C T T G G T A A G T C A T A C C

mRNA Molecule : A U G A A C C A U U C A G U A U G G

Translation:

Conversion of mRNA into proteins

Translate the mRNA into the corresponding amino acids.

mRNA Molecule : A U G A A C C A U U C A G U A U G G

Amino Acid : Methionine, Asparginine, Iso-leucine, Serine, Valine, Trptophan

Using the DNA sequence provided, determine the amino acids.

Original DNA A T G G G T C T A G C G A A A G A T

Complimentary DNA : T A C C C A G A T C G C T T T C T A

mRNA Molecule : A U G G G U C U A G C G A A A G A U

Amino Acid : Methionine, Glycine, Leucine, alanine, Lysine, aspartic acid

Questions:

Using what you have learned in the lesson and the experiment, answer the following questions in complete sentences.

What is the function of mRNA?

To being transcribed into protein

What is the function on tRNA?

To take the amino acids to mRNA

Describe what happens during transcription.

DNA is converted into mRNA

Describe what happens during translation.

mRNA is converted into proteins

Explain how DNA is used to make a protein.

DNA is transcribed into mRNA THAT IS CONVERTED INTO protein

4 0

3 years ago

What does a collar cell look like? What is its function?

Fudgin [204]

Answer: The function of this cell is to take food to other cells

Explanation:

The collar cells have a sticky, funnel shaped collar and a hairlike whip, called a flagellum. The collar cells serve two purposes. First, they beat their flagella back and forth to force water through the sponge. ... Another type of cell, called an amebocyte, takes the food to other cells within the sponge.

3 0

2 years ago

PLEASE DO THIS ASAP!!!!!!!!!!!!!!!!!! 30 POINTS!!!!!!!!!!!! HELP URGENT!!!!!!!!!!!!!

klio [65]

The strands are suppose to be exactly same when replication is complete, so you would not be able to tell the difference.

5 0

2 years ago

Which statement accurately describes how identification of individuals through the use of genetic engineering is possible?

Andre45 [30]

The identification of an individual by the means of genetic engineering is possible because the Y chromosomes in the males does not experience any crossing-over as there is only a single Y chromosome present in a human male.

The mitochondrial DNA is passed from the mother to child in the cytoplasm of the cell, and it is passed on without any changes. The X chromosome is can be passed from a mother to her son as he will receive Y chromosome from his father.

Hence, the correct answer is 'Option B - The Y chromosome does not experience crossing over'.

3 0

2 years ago

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