Patterns of Inheretance

Question 1

Simple or Complete Dominance

Answer 1

a form of dominance wherein the dominant allele completely masks the effect of the recessive allele in heterozygous conditions (Ex: Rr Red scale fish because the dominant allele completely masks the recessive allele)

Question 2

Incomplete Dominance

Answer 2

a form of Gene interaction in which both alleles of a gene at a locus are partially expressed, often resulting in an intermediate or different phenotype (Ex: Rr purple scales although R is red and r is blue)

Question 3

Codominance

Answer 3

no allele can block or mask the expression of the other allele (Ex: Rr is both red and blue scales because R is red and r is blue)

Question 4

Multiple Allele

Answer 4

an allele of a genetic locus having more than two allelic forms within a population (Ex: ABO blood type)

Question 5

Sex–linked inheritance

Answer 5

a trait in on the x chromosome is different in females than in males; males cannot be heterozygous for a sex-linked trait (Ex: colorblindness)