AP BIOLOGY

THE MOLECULAR BASIS OF INHERITANCE

DNA MAKES RNA MAKES PROTEIN

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What is the term for three mRNA bases that code for one single amino acid?
A
protein
B
nucleotide
C
nitrogen base
D
codon
Explanation: 

Detailed explanation-1: -Each group of three bases in mRNA constitutes a codon, and each codon specifies a particular amino acid (hence, it is a triplet code). The mRNA sequence is thus used as a template to assemble-in order-the chain of amino acids that form a protein.

Detailed explanation-2: -The triplets of nitrogenous bases in DNA that code for amino acids are called codons.

Detailed explanation-3: -In mRNA, three-nucleotide units called codons dictate a particular amino acid.

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