AP BIOLOGY

THE MOLECULAR BASIS OF INHERITANCE

DNA MAKES RNA MAKES PROTEIN

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What would be the tRNA anticodon for the mRNA codon CAG?
A
GTC
B
GUC
C
CUG
D
CAG
Explanation: 

Detailed explanation-1: -For instance, a messenger RNA codon GCA matches with the transfer RNA with the anticodon CGU, which carries with it the amino acid called alanine.

Detailed explanation-2: -The tRNA anticodon is a sequence of three nucleotides that are the complement of the three nucleotides in the mRNA codon. The function of the anticodon is to help the tRNA find the appropriate amino acid that the mRNA codon specified.

Detailed explanation-3: -a. UCG is the anticodon on tRNA for AGC codon in an mRNA.

Detailed explanation-4: -The translation between mRNA and amino acids is the same for all living things. (For example, the mRNA codon CAG codes for glutamine in all living things.)

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