1) Which of the following is an example of a palindromic DNA sequence? a) 5\' -

Question

1) Which of the following is an example of a palindromic DNA sequence?

a) 5' - ATCGAC - 3'3'-TAGCAG - 5'

b) 5' - ATCATC - 3'3'-ATCATC - 5'

c) 5' - GCCGCC - 3'3'-CGGCGG - 5'

d) 5' CTGCAG - 3'3'-GACGTC - 5'

2) A mutation that can be passed down to an individuals descendants (children) is called a _____ mutation.

a) constant

b) somatic

c) germline

d) de novo

e) sporadic

3) Anticipation is associated with which of the following?

a) Nonsense mutations

b) up-promotoer mutations

c) intergenic suppressors

d) TRNE mutations

e) none of the above

Explanation / Answer

1. A palindromic sequence is the one that can be read same either from 5’ to 3’ direction or 3’ to 5’ direction.

b) 5' - ATCATC - 3'3'-ATCATC - 5'

2. c) germline

A mutation that can be passed down to an individuals descendants (children) is called a ___germline__ mutation. The germline cells also give raise to the reproductive cells, and mutations in these cells are inherited by the offpsring through the gametes.

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