MarksRiser
MarksRiser
AIPMT PRELIMS2011Botany-Molecular Basis of Inheritance

AIPMT PRELIMS 2011 Botany DNA Structure MCQ Question

Type: MCQ-conceptual-Medium-Class 12

Given below is a sample of a portion of DNA strand giving the base sequence on the opposite strands. What is so special shown in it? 5’ ——— GAATTC ——— 3’ 3’ ——— CTTAAG ——— 5’

A

Palindromic sequence of base pairs

B

Replication completed

C

Deletion mutation

D

Start codon at the 5’ end

Correct Answer

Option A

Detailed Explanation

5’ — GAATTC — 3’ and 3’ — CTTAAG — 5’ is the palindromic sequence, recognised by EcoRI.

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