THE MOLECULAR BASIS OF INHERITANCE
DNA MAKES RNA MAKES PROTEIN
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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ribosome
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tRNA
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anticodon
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rRNA
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Detailed explanation-1: -The AUG start codon signals the ribosome to place in the amino acid methionine because the tRNA that has methionine attached to it has the anticodon sequence UAC.
Detailed explanation-2: -Transfer RNA has an anticodon loop with a three-base sequence that base-pairs with mRNA codons. The mRNA codon is read in 5’–>3 direction and the first base of the codon in mRNA pairs with the third base of the anticodon. Therefore, codon for anticodon 3’ UUA 5’ is 5’ AAU 3’.
Detailed explanation-3: -The message identifying a specific amino acid is carried by the messenger RNA codon, while the transfer RNA transfers that amino acid to the developing protein chain. The tRNA anticodon is a three-nucleotide sequence that is the inverse of the three-nucleotide mRNA codon. UAC is the anticodon for AUG.
Detailed explanation-4: -At one end, the tRNA has an anticodon of 3’-UAC-5’, and it binds to a codon in an mRNA that has a sequence of 5’-AUG-3’ through complementary base pairing. The other end of the tRNA carries the amino acid methionine (Met), which is the the amino acid specified by the mRNA codon AUG.