Mendelian & Non-Mendelian Genetics

Front

What is the genotype for a heterozygous dominant offspring when green peas (G) are dominant to yellow peas (g)?

Back

Gg

Front

What do you call a genotype where only recessive alleles were passed on from both parents for one trait (e.g., bb aa tt ll)?

Back

Homozygous Recessive

Front

What is the term for the physical expression of a gene?

Back

Phenotype

Front

In carnations, what are the genotypes for red, white, and speckled flowers if red is RR, white is WW, and speckled is RW?

Back

Red = RR, White = WW, Speckled = RW

Front

What is the term for a genotype where one dominant and one recessive allele was passed on from both parents for one trait (e.g., Bb Aa Tt Ll)?

Back

Heterozygous

Front

Define 'allele'.

Back

An allele is a variant form of a gene that can produce different traits.

Front

What is the difference between genotype and phenotype?

Back

Genotype refers to the genetic makeup, while phenotype refers to the physical expression of that genetic makeup.

Front

What does it mean if a trait exhibits codominance?

Back

Codominance occurs when both alleles in a heterozygote are fully expressed, resulting in a phenotype that is neither dominant nor recessive.

Front

What is a homozygous dominant genotype?

Back

A genotype with two dominant alleles for a trait (e.g., GG).

Front

What is the principle of segregation in genetics?

Back

The principle of segregation states that during the formation of gametes, the two alleles for a trait separate from each other.