Genetics

Question 1

Genotype

Answer 1

The particular combination of alleles present.

Question 2

Phenotype

Answer 2

The character of observable trait of an organism.

Question 3

Dominant phenotype

Answer 3

One that is observed in the heterozygote and one homozygote.

Question 4

Recessive phenotype

Answer 4

Only observed in the homozygous condition.

Question 5

Codominance

Answer 5

The phenotypes of both homozygotes are expressed equality in the heterozygote.

Question 6

Monohybrid cross

Answer 6

A cross between two individuals involving a single genetic locus.

Question 7

Pure-breeding strains

Answer 7

Are homozygous at the locus of interest and produce genetically identical progeny.

Question 8

Sex-linked inheritance

Answer 8

The inheritance pattern determined by genes located on the sex chromosomes.

Question 9

Carrier

Answer 9

An organism with an allele for a disease that is masked by a normal dominant phenotype.

Question 10

Dominant phenotype

Answer 10

The observable characteristic that is evident in the heterozygote.