OBJECTIVE LIFE SCIENCE
MOLECULAR BIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The nucleotide sequence of mRNA codon is composed of how many bases?
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2
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3
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20
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64
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Explanation:
Detailed explanation-1: -The sequence of nucleotides in the mRNA molecule is read consecutively in groups of three. RNA is a linear polymer of four different nucleotides, so there are 4 × 4 × 4 = 64 possible combinations of three nucleotides: the triplets AAA, AUA, AUG, and so on.
Detailed explanation-2: -It was also known that there are only four nucleotides in mRNA: adenine (A), uracil (U), guanine (G), and cytosine (C).
Detailed explanation-3: -The bases in mRNA are grouped into sets of three called codons.
There is 1 question to complete.