AP BIOLOGY

THE MOLECULAR BASIS OF INHERITANCE

DNA MAKES RNA MAKES PROTEIN

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
How many nucleotides are needed to make 2 amino acids?
A
3
B
6
C
9
D
12
Explanation: 

Detailed explanation-1: -Answer and Explanation: The correct answer is (c): three. The mRNA templates contain the code for proteins as nucleotide triplets called codons.

Detailed explanation-2: -For example, six codons specify leucine, serine, and arginine, and four codons specify glycine, valine, proline, threonine, and alanine. Eight amino acids have two codons, whereas there is one codon each for methionine and tryptophan.

Detailed explanation-3: -Hidden within the genetic code lies the “triplet code, ” a series of three nucleotides that determine a single amino acid.

Detailed explanation-4: -In the given mRNA sequence there are 15 nucleotide . One amino acid codes triplet three nucleotide. So, after addition of adenosine residue the total number of nucleotide is 16. So five amino acids will be coded by the mRNA sequence.

There is 1 question to complete.