Codominance & Incomplete Dominance

Front

What is incomplete dominance?

Back

A type of inheritance pattern where the phenotype of the offspring is a mixture of the parents' traits.

Front

What is codominance?

Back

A type of inheritance pattern where both traits from the parents are fully expressed in the offspring.

Front

Give an example of incomplete dominance.

Back

A long-haired rabbit and a short-haired rabbit produce an offspring with a medium-length coat.

Front

What does homozygous recessive mean?

Back

An organism with two identical recessive alleles for a trait, represented as 'tt'.

Front

What is the phenotype of an organism with genotype 'TT'?

Back

The phenotype is dominant, showing the trait associated with the dominant allele.

Front

In a Punnett square, what does a 50% chance of black offspring indicate?

Back

It indicates that half of the offspring will express the black trait due to incomplete dominance.

Front

What is the difference between codominance and incomplete dominance?

Back

In codominance, both traits are fully expressed, while in incomplete dominance, the traits blend.

Front

If a red flower (RR) is crossed with a white flower (WW) and produces pink flowers (RW), what type of inheritance is this?

Back

This is an example of incomplete dominance.

Front

What is the expected phenotypic ratio in a monohybrid cross showing codominance?

Back

1:2:1 ratio of the three phenotypes.

Front

What is a Punnett square used for?

Back

A tool used to predict the genotypes and phenotypes of offspring from genetic crosses.