Question

6. Using a translation table, there is only one possible sequence of nucleotides in the template strand of DNA listed below that would code for the polypeptide sequence Phe-Leu-Ile-Val. Identify the correct one and explain for all other choices why they cannot be correct. A) 5' UUG-CUA-CAG-UAG 3'.

B) 3' TTT-GTT-TAG-CAG 5'.

C) 5' AAG-GAA-TAA-CAA 3'.

D) 3' AAA-AAT-ATA-ACA 5'.

E) 3' AAA-GAA-TAA-CAA 5'.

Answer 1

Answere :

The correct option is option (E) i.e. 3' AAA-GAA-TAA-CAA 5'

A template strand is a DNA strand that provides the pattern for ordering the sequence of nucleotides in an RNA transcript.

It has always 3'→5' orientation and synthesis of mRNA always occur in 5'→3' direction on template strand.

So, In above options, only possible option will be "option E".

DNA do not have Uracil. It always has Thymine.

Please rate the answere...