Non-Mendelian Genetics

Front

What is Non-Mendelian Genetics?

Back

Non-Mendelian Genetics refers to patterns of inheritance that do not follow Mendel's laws of inheritance, including codominance, incomplete dominance, and multiple alleles.

Front

Define Codominance.

Back

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

Front

What is the phenotypic ratio when crossing a red flower (RR) with a speckled flower (RB)?

Back

2 red, 2 speckled.

Front

What is the genotype for a brown mouse in incompletely dominant coat color inheritance?

Back

Bb.

Front

What does the term 'alleles' refer to?

Back

Alleles are different forms of a gene that can exist at a specific locus on a chromosome.

Front

What is Incomplete Dominance?

Back

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

Front

What is the genotype for Roan color in cattle?

Back

RW.

Front

How does codominance differ from incomplete dominance?

Back

In codominance, both alleles are fully expressed, while in incomplete dominance, the phenotype is a blend of the two alleles.

Front

What is the expected phenotypic ratio for a cross between two heterozygous codominant flowers (RB x RB)?

Back

1 red, 2 speckled, 1 blue.

Front

What is the significance of multiple alleles in genetics?

Back

Multiple alleles refer to the presence of more than two alleles for a genetic trait, allowing for a greater variety of phenotypes.