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Question5' GGGCCCUGCUCUGGUCCACCUCAG 3'
Question 18 1 pts
What is the anticodon of the tRNA that brought glycine into the growing polypeptide chain? A) 5′5^{\prime} C C G 3′3^{\prime} B) 5′5^{\prime} C G G 3' C) 5' G C C 3′3^{\prime} D) 5′5^{\prime} G G C 3' 5' CCG 3' 5' CGG 3' 5' GCC 3'

Studdy Solution

STEP 1

1. The sequence provided is an mRNA sequence.
2. Glycine is coded by the codon GGU, GGC, GGA, or GGG in mRNA.
3. The anticodon is complementary to the mRNA codon and is found on the tRNA.

STEP 2

1. Identify the codon for glycine in the mRNA sequence.
2. Determine the anticodon sequence on the tRNA that pairs with the glycine codon.
3. Match the anticodon sequence to the given options.

STEP 3

Identify the codon for glycine in the mRNA sequence.
The given mRNA sequence is: 5′ GGGCCCUGCUCUGGUCCACCUCAG 3′ 5' \, \text{GGGCCCUGCUCUGGUCCACCUCAG} \, 3'
The codons are read in sets of three nucleotides. Glycine is coded by the codons GGU, GGC, GGA, or GGG.
In the given sequence, the codon for glycine is: GGG \text{GGG}

STEP 4

Determine the anticodon sequence on the tRNA that pairs with the glycine codon.
The anticodon is complementary to the mRNA codon and is read in the 3' to 5' direction.
For the codon GGG, the complementary anticodon is: 3′ CCC 5′ 3' \, \text{CCC} \, 5'

STEP 5

Match the anticodon sequence to the given options.
The anticodon sequence 3′ CCC 5′ 3' \, \text{CCC} \, 5' corresponds to: 5′ CCC 3′ 5' \, \text{CCC} \, 3'
This matches option A: 5′ C C G 3′ 5' \, \text{C C G} \, 3'
However, upon reviewing the options, none of them correctly match 5′ CCC 3′ 5' \, \text{CCC} \, 3' . Therefore, it seems there might be a mistake in the options provided.
The anticodon for glycine in the given sequence is:
5′ CCC 3′ \boxed{5' \, \text{CCC} \, 3'}

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