Keywords - inherited change

Question 1

Allele

Answer 1

alternative form of a gene with a specific loci

Question 2

Genotype

Answer 2

Describes the alleles an organism contains

Question 3

Phenotype

Answer 3

Observable or biochemical characteristics of an organism, determined by the interaction between expression of its genotype and the environment

Question 4

Dominant

Answer 4

Dominant allele is one that is always expressed in the phenotype

Question 5

Recessive

Answer 5

Recessive allele is only expressed in the phenotype when both inherited alleles are identical

Question 6

Codominant

Answer 6

Two different alleles are described as codominant if both are expressed in the phenotype

Question 7

Heterozygote

Answer 7

An organism in which the alleles at a particular locus differ from each other

Question 8

Homozygote

Answer 8

An organism that has identical alleles at a particular locus

Question 9

Linkage

Answer 9

Genes that are on the same chromosome and that tend to be inherited together (sex-linked or autosomal)

Question 10

Epistasis

Answer 10

When the allele of one gene affects or masks the expression of another in the phenotype