Incomplete and Codominance

Front

What is Incomplete Dominance?

Back

A genetic scenario where one allele is not completely dominant over another, resulting in a blended phenotype in heterozygous offspring.

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.

Front

How does Incomplete Dominance differ from Mendelian inheritance?

Back

In Incomplete Dominance, the heterozygous genotype has a unique phenotype, unlike Mendelian inheritance where dominant alleles mask recessive ones.

Front

What is the phenotype of a heterozygous snapdragon (Rr) in terms of flower color?

Back

Pink, as red (RR) and white (rr) alleles blend to produce a pink phenotype.

Front

If two pink snapdragons (Rr) are crossed, what is the probability of producing pink offspring?

Back

50%.

Front

In a cross between a red flowered plant (RR) and a white flowered plant (WW) with incomplete dominance, what percentage of offspring will be red?

Back

0%.

Front

What is the expected phenotype ratio in a cross involving incomplete dominance?

Back

1:2:1 ratio of phenotypes (one for each homozygous type and two for the heterozygous type).

Front

What is the genotype of a gray cat if black (B) and white (W) show incomplete dominance?

Back

BW.

Front

In a Punnett square for incomplete dominance, what does each box represent?

Back

Each box represents a possible genotype of the offspring from the parental alleles.

Front

What is the phenotype of a homozygous white flower (WW) crossed with a homozygous red flower (RR) in incomplete dominance?

Back

All offspring will be pink (RW).