Asked by Madison Bertram on Jul 27, 2024
Verified
Protein A is composed of 312 amino acids. Based on this information, which of the following statements is correct?
A) The gene coding for Protein A is composed of at least 936 DNA nucleotides.
B) The mRNA coding for Protein A is composed of at least 936 DNA nucleotides.
C) The gene coding for Protein A is composed of at least 316 RNA nucleotides.
D) Both "The gene coding for Protein A is composed of at least 936 DNA nucleotides" and "The mRNA coding for Protein A is composed of at least 936 DNA nucleotides" are correct.
DNA Nucleotides
The basic building blocks of DNA, consisting of a sugar molecule, a phosphate group, and a nitrogenous base.
RNA Nucleotides
The basic building blocks of RNA, consisting of a nitrogen base, a sugar (ribose), and a phosphate group.
Amino Acids
Life's foundational components, organic molecules, which merge to constitute proteins.
- Outline the formation and function of various RNA molecules in cells, originating from DNA templates.
Verified Answer
AS
Ashwin SasikumarJul 29, 2024
Final Answer :
A
Explanation :
The gene coding for Protein A must contain at least 936 DNA nucleotides because each amino acid is coded by a triplet of nucleotides (codon), so 312 amino acids require 312 x 3 = 936 nucleotides. The mRNA is not composed of DNA nucleotides, but rather RNA nucleotides, making option B incorrect. Option C is incorrect in both the nucleotide type (RNA instead of DNA) and the count (it should also reflect the triplet codon requirement).
Learning Objectives
- Outline the formation and function of various RNA molecules in cells, originating from DNA templates.