Non-Mendelian DOL L1

Front

What is incomplete dominance?

Back

A genetic situation in which one allele does not completely dominate another allele, resulting in a phenotype that is a blend of the two traits.

Front

What is codominance?

Back

A genetic scenario where both alleles in a heterozygote are fully expressed, resulting in offspring with a phenotype that shows both traits distinctly.

Front

What is the genotype for a pink flower in incomplete dominance?

Back

RW (Red and White alleles combine to produce Pink flowers).

Front

In the case of red (RR) and white (WW) flowered plants, what percentage of the offspring will have pink flowers when they breed?

Back

100% of the offspring will have pink flowers (RW).

Front

What is the phenotype of a plant with the genotype RW?

Back

The phenotype is pink flowers due to incomplete dominance.

Front

What does it mean when an allele is dominant?

Back

A dominant allele is one that expresses its trait even when only one copy is present in the genotype.

Front

What does it mean when an allele is recessive?

Back

A recessive allele only expresses its trait when two copies are present in the genotype.

Front

What is the genotype for a roan-colored cattle?

Back

RW (Red and White alleles combine to produce Roan color).

Front

In codominance, how are the traits expressed in the phenotype?

Back

Both traits are fully and separately expressed in the phenotype.

Front

Give an example of codominance in animals.

Back

An example is the AB blood type in humans, where both A and B alleles are expressed.