Question

A sequence of mRNA stand is shown: 5' CCG UGG AAU CGU AAA 3'

Which of the following is the correct amino acid chain produced from the mRNA strand?
a Proline - Serine - Asparagine - Arginine - Phenylalanine
b Glycine - Threonine - Leucine - Alanine - Phenylalanine
c Alanine - Threonine - Phenylalanine - Arginine - Lysine
d Proline - Trypotophan - Asparagine - Arginine - Lysine

Answer 1

The correct amino acid chain produced from the mRNA strand 5'CCGUGGAAUCGUAAA3' is Proline - Serine - Asparagine - Arginine - Phenylalanine.

Step-by-step explanation:

The sequence of the mRNA strand 5'CCGUGGAAUCGUAAA3' codes for the amino acid chain: Proline - Serine - Asparagine - Arginine - Phenylalanine. This can be determined by referencing the genetic code chart, which shows that the codon CCG codes for Proline, UGG codes for Tryptophan, AAU codes for Asparagine, CGU codes for Arginine, and AAA codes for Lysine.

Since the mRNA sequence is read from the 5' end, the corresponding amino acid chain is Proline - Serine - Asparagine - Arginine - Phenylalanine.