LS CH 4 Vocabulary: Genetics - The Science of Heredity

An offspring of crosses that has two different alleles for a trait

• purebred

• inbred

• hybrid

• wheatbred

The process that occurs in the formation of sex cells (sperm and egg) by which the number of chromosomes is reduced by half

• mitosis

• halitosis

• meiosis

• fertilization

A sequence of DNA that determines a trait and is passed from parent to offspring

• allele

• chromosome

• centromere

• gene

The scientific study of heredity

• embryology

• pathology

• genetics

• optimology

The inheritance of traits that are controlled by two or more genes, such as height in humans

• incomplete dominance

• codominance

• multiple alleles

• polygenetics

The passing if traits from parents to offspring.

• genetics

• heredity

• fertilization

• factors

Three or more possible alleles of a gene that determines a trait

• incomplete dominance

• codominance

• multiple alleles

• polygenetic inheritance

Having two identical alleles for a particular gene

• homozygous

• heterozygous

• homogenous

• heterosexual

A number that describes how likely it is that a particular event will occur

• prime

• probability

• even

• lucky

A situation in which one allele is not completely dominant over another allele

• incomplete dominance

• codominance

• multiple alleles

• polygenic inheritance