Question

Restriction enzymes recognize palindrome sequences, which are also often involved in gene regulation.

What is the last half of the GGA palindrome sequence and HOW do we figure out this?

a) GGA

b) AGG

c) TCC

d) CCT

Answer 1

Restriction enzymes also known as restriction endonucleases are enzymes that recognize specific regions known as palindromic sequences on double stranded DNA and they cut the DNA at those specific regions. These palindromic sequences are a short string of identical bases on both strands of DNA. The first three bases of a palindromic sequence will be followed by the complement of those three bases in a reverse order. For GGA the last half of the palindrome sequence is the complement of GGA in reverse order which is TCC. So, the correct option is option C, TCC.