Unit 3.2 and 3.3

Question 1

A heterozygote that carries a recessive allele that can be passed to the next generation, but does not display the recessive phenotype.

Answer 1

Carrier

Question 2

A type of mutation where a segment of DNA is removed from the sequence.

Answer 2

Deletion

Question 3

A type of mutation where one or more nucleotides are added into a DNA sequence.

Answer 3

Insertion

Question 4

A type of mutation (insertion or deletion) that shifts the reading frame of the genetic code, leading to a change in the amino acid sequence of a protein.

Answer 4

Frameshift

Question 5

The sum of a set of values divided by the number of values.

Answer 5

Mean (average)

Question 6

A change in the DNA sequence.

Answer 6

Mutation

Question 7

The process by which DNA is copied to produce two identical DNA molecules.

Answer 7

Replication

Question 8

A type of mutation where one nucleotide is replaced by a different nucleotide.

Answer 8

Substitution