Chapter 27 Quiz 2

A gene mutation involves a change in the (a)______________ sequence of the DNA in a gene, while a chromosome mutation may involve a change in the structure or (b)______________ of chromosomes.

• (a) base, (b) size

• (a) base, (b) number

• (a) amino acid, (b) size

• (a) amino acid, (b) number

A frameshift mutation is a type of mutation involving the (c)______________ or (d)______________ of bases that are not in multiples of three.

• (c) insertion, (d) deletion

• (c) substitution, (d) inversion

(e)______________ mutations are mutations that occur naturally and randomly with no outside causes.

• Induced

• Spontaneous

Induced mutations are caused by exposure to (f)______________.

• mutagens

• carcinogens

The original base sequence of a segment of DNA and a mutated sequence are shown.

This type of mutation is called

• an insertion.

• a deletion.

• a substitution.

• an inversion.

The original base sequence of a segment of DNA and a mutated sequence are shown.

This type of mutation is called

• an insertion.

• a deletion.

• a substitution.

• an inversion.

The original base sequence of a segment of DNA and a mutated sequence are shown.

This type of mutation is called

• an insertion.

• a deletion.

• a substitution.

• an inversion.

The original base sequence of a segment of DNA and a mutated sequence are shown.

This type of mutation is called

• an insertion.

• a deletion.

• a substitution.

• an inversion.