Which of the following would represent a section of dna with a palindromic sequence? group of answer choices 5' gga ctt 3' 5' cat atg 3' 5' ttt cca 3' 5' tat ccg 3'

5' CAT ATG 3'

Explanation:

A palindromic sequence is a sequence made up of nucleic acids within double helix of DNA and/or RNA that is the same when read from 5’ to 3’ on one strand and 5’ to 3’ on the other, complementary, strand. It is also known as a palindrome or an inverted-reverse sequence.

The pairing of nucleotides within the DNA double-helix is complementary which consist of Adenine (A) pairing with either Thymine (T) in DNA or Uracil (U) in RNA, while Cytosine (C) pairs with Guanine (G). So if a sequence is palindromic, the nucleotide sequence of one strand would be the same as its reverse complementary strand. An example of a palindromic sequence is 5’-GGATCC-3’, which has a complementary strand, 3’-CCTAGG-5

a) 5' GGA CTT 3' = 3' CCT GAA 5'

This is not a palindromic sequence as it's complementary strand is not the reverse of the original one.

b) 5' CAT ATG 3' = 3' GTA TAC 5'

This is a palindromic sequence.

c) 5' TTT CCA 3' = 3' AAA GGA 5'

This is not a palindromic sequence as it's complementary strand is not the reverse of the original one.

D) 5' TAT CCG 3' = 3' ATA GGC 5'

This is not a palindromic sequence as it's complementary strand is not the reverse of the original one.

c) 50% there are four chromosomes. after crossing over, 2 of the four have been changed. that means any gamete has a 2 in 4 chance or 50% chance of receiving the mutated chromosome.