Mendelian & Non-Mendelian Genetics

Front

What is a genotype where only recessive alleles were passed on from both parents for one trait?

Back

Homozygous Recessive (e.g., bb, aa, tt, ll)

Front

What is a genotype where one dominant and one recessive allele was passed on from both parents for one trait?

Back

Heterozygous (e.g., Bb, Aa, Tt, Ll)

Front

What are the genotypes for red, white, and speckled carnations exhibiting codominance?

Back

Red = RR, White = WW, Speckled = RW

Front

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

Back

Gg

Front

What is a genotype where only dominant alleles were passed on from both parents for one trait?

Back

Homozygous Dominant (e.g., BB, AA, TT, LL)

Front

Define allele.

Back

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

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.

Front

What is codominance?

Back

Codominance is a genetic scenario where both alleles in a heterozygote are fully expressed, resulting in a phenotype that is neither dominant nor recessive.

Front

What is the difference between phenotype and genotype?

Back

Genotype refers to the genetic makeup of an organism, while phenotype is the observable physical or biochemical characteristics.

Front

What does it mean for a trait to be dominant?

Back

A dominant trait is one that is expressed in the phenotype even when only one copy of the allele is present.