Incomplete dominance

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 alleles.

Front

What phenotype results from crossing a red flower (RR) with a white flower (WW) in incomplete dominance?

Back

All offspring will be pink (RW).

Front

What is the genotype for a pink snapdragon flower?

Back

RW (one red allele and one white allele).

Front

In incomplete dominance, what percentage of offspring will be white when crossing a red flower (RR) with a white flower (WW)?

Back

0%.

Front

What is the genotype for a red snapdragon flower?

Back

RR (homozygous red).

Front

In incomplete dominance, what percentage of offspring will be red when crossing a red flower (RR) with a pink flower (RW)?

Back

50%.

Front

What is the phenotype of a heterozygous individual in incomplete dominance?

Back

A blend of the dominant and recessive phenotypes.

Front

What is the difference between incomplete dominance and codominance?

Back

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

Front

If a pink flower (RW) is crossed with a white flower (WW), what are the possible genotypes of the offspring?

Back

50% RW (pink) and 50% WW (white).

Front

What is the expected phenotype ratio of a cross between two pink snapdragons (RW x RW)?

Back

1 red (RR) : 2 pink (RW) : 1 white (WW).