The Template Strand of a Segment of Double-Stranded DNA Contains

question 24

Essay

The template strand of a segment of double-stranded DNA contains the sequence:
(5')-CTT TGA TAA GGA TAG CCC TTC-(3')
(a)What is the base sequence of the mRNA that can be transcribed from this strand?
(b)What amino acid sequence could be coded by the mRNA base sequence in (a),using only the first reading frame starting at the 5' end?
(c)Suppose the other (complementary)strand is used as a template for transcription.What is the amino acid sequence of the resulting peptide,again starting from the 5' end and using only the first reading frame?

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Definitions:

Cyanohydrin

Organic compounds with a nitrile and a hydroxyl functional group attached to the same carbon atom.

Aldehyde

An organic compound characterized by the presence of a carbonyl group bonded to at least one hydrogen atom.

Conversion

The process of changing something from one form to another, often used in chemistry to describe the transformation of substances.

Reaction

A process in which one or more substances are changed into one or more different substances through the reorganization of molecular or ionic structure.