Gene expression - chuck 2

Question 1

Deletion

Answer 1

A form of mutation where one or more of the DNA bases is removed from the DNA chain and lost forever

Question 2

Insertion

Answer 2

A form of DNA mutation where one or more bases is added (inserted) into DNA chain, changing the genetic coding of the chain dramatically

Question 3

Substitution

Answer 3

A form of DNA mutation involving the replacement or substitution of a single nucleotide base with another

Question 4

Reading Frame-Shift

Answer 4

A type of gene mutation wherein the addition or deletion of base(s) causes a shift in the reading frame of codons in the mRNA