Biology High School

What is the correct mRNA transcription of the following DNA sequence? ATGGCACCTTAC
A. UACCGUGGAAUG
B. AUGGCACCUUAC
C. CAUUCCACGGUA
D. CATTCCACGGTA

Answers

Answer 1
Answer: A

Why? None of the other sequences will match up correctly
Answer 2

The process of transcription produces the mRNA sequence from the DNA. The mRNA transcription of ATGGCACCTTAC will be UACCGUGGAAUG. Thus, option A is correct.

What is mRNA transcription?

Transcription is the process of the formation of mRNA from the replicated DNA strand of the cell. It produces an mRNA transcript that is a single strand and further codes for amino acids.

The mRNA transcript forms by the base pairing with the DNA template. If the DNA sequence is ATGGCACCTTAC then according to the base pairing rule the adenine (A) pairs with uracil (U) in mRNA, and guanine (G) pairs with cytosine (C). In mRNA, the adenine binds with uracil and not thymine, and hence A pairs with U, whereas the G-C bond remains the same.

The DNA strand: ATGGCACCTTAC

The mRNA sequence will be:  UACCGUGGAAUG

Therefore, option A. UACCGUGGAAUG is the mRNA transcript.

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Related Questions

Which of the following best describes genes?

a: polymers of peptides used to make proteins
b: nucleotide sequences in dna that code for traits
c: pieces of rna that produce carbohydrates
d: collections of nucleic acids that generate energy

Answers

Answer:

b: nucleotide sequences in dna that code for traits

If you use a microscope to view an unknown cell, what structure should you look for to tell you if it is a eukaryotic cell?
A Cell membrane
B Cytoplasm
C DNA
D) Nucleus

Answers

Answer:

If you use a microscope to view an unknown cell,  should you look for a nucleus option D.) to tell you if it is a eukaryotic cell

Explanation:

d! because eukaryotic cells have a nucleus unlike prokaryotic cells

What is the main difference between the two parts of protein synthesis?
A. The first builds RNAs and the second builds proteins
B. The first happens in the presence of oxygen and the second is anaerobic
C. The first requires the input of energy from the cell and the second is passive
D. The first take place in the cytoplasm and the second takes place in the nucleus​

Answers

Answer:

A

Explanation:

transcription creates mRNA, while translation builds proteins

In the process of protein synthesis, the first builds RNAs and the second builds proteins. The correct option is A.

What is protein synthesis?

Cells create proteins through a process known as protein synthesis. Transcription and translation take place simultaneously.

The conversion of genetic information from DNA to mRNA in the nucleus is known as transcription. Initiation, elongation, and termination are its three stages.

Creating a polypeptide, or protein consisting of a chain of amino acids, is the sole goal of protein synthesis. Keratin, a protein, is produced in the cells of the hair follicle.

In the first stage, messenger RNA (mRNA) is created. After leaving the nucleus, mRNA moves into the cytoplasm and joins a ribosome.

At this time, the second stage of translation starts, during which a specific protein molecule is created by reading the genetic instructions contained in the mRNA molecule.

Thus, the correct option is A.

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