Codominance vs incomplete dominance

Front

What is Incomplete Dominance?

Back

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

Front

What is Co-Dominance?

Back

A genetic situation in which both alleles in a heterozygote are fully expressed, resulting in offspring with a phenotype that shows both traits simultaneously.

Front

Example of Incomplete Dominance: What color will the offspring be if a red flower (RR) is crossed with a white flower (WW)?

Back

The offspring will be pink (RW).

Front

Example of Co-Dominance: What color will the offspring be if a red flower (RR) is crossed with a white flower (WW)?

Back

The offspring will have both red and white patches (RW).

Front

What is the phenotype of a heterozygous individual in Incomplete Dominance?

Back

The phenotype is a blend of the two parental traits.

Front

What is the phenotype of a heterozygous individual in Co-Dominance?

Back

The phenotype displays both parental traits distinctly.

Front

If a black chicken (BB) is crossed with a white chicken (WW), what is the result in terms of Co-Dominance?

Back

The offspring will have black and white feathers (BW).

Front

In a genetic cross, what does the term 'allele' refer to?

Back

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

Front

What is the expected phenotypic ratio in a monohybrid cross involving Incomplete Dominance?

Back

1:2:1 ratio (one homozygous dominant, two heterozygous, one homozygous recessive).

Front

What is the expected phenotypic ratio in a monohybrid cross involving Co-Dominance?

Back

1:2:1 ratio (one homozygous dominant, two heterozygous showing both traits, one homozygous recessive).