Inheritance of Traits FINAL

Front

What are homologous chromosomes?

Back

Chromosomes that contain the same types of genes, one inherited from each parent.

Front

What is the genotype of a rough coat boar (dominant R) and a soft coat sow (recessive r) that produces 50% rough and 50% soft coat offspring?

Back

Rr × rr

Front

What is polygenic inheritance?

Back

A pattern of inheritance where multiple genes influence a single trait, such as flower color.

Front

What is the expected phenotypic ratio when two heterozygous purple-flowering pea plants are crossed?

Back

75% purple, 25% white.

Front

What is a dominant allele?

Back

The form of a gene that is always expressed if present.

Front

What is a recessive allele?

Back

The form of a gene that is only expressed when two copies are present.

Front

What are alleles?

Back

Different forms of a gene that can exist at a specific locus on a chromosome.

Front

What is the difference between genotype and phenotype?

Back

Genotype refers to the genetic makeup of an organism, while phenotype refers to the observable traits.

Front

What is incomplete dominance?

Back

A form of inheritance where the phenotype of a heterozygote is intermediate between the phenotypes of the two homozygotes.

Front

What are sister chromatids?

Back

Identical copies of a chromosome that are connected by a centromere.