Incomplete and CoDominance

Front

What is Codominance?

Back

Codominance is a type of inheritance pattern where both alleles in a heterozygous individual contribute equally and visibly to the phenotype. For example, in a calico cat, both orange and black fur colors are expressed.

Front

What is Incomplete Dominance?

Back

Incomplete dominance is an inheritance pattern where the phenotype of a heterozygote is intermediate between the phenotypes of the two homozygotes. For example, crossing red and white flowers may produce pink flowers.

Front

What is the phenotype of a cat with the genotype BB?

Back

The phenotype of a cat with the genotype BB is black fur.

Front

What is the phenotype of a cat with the genotype WW?

Back

The phenotype of a cat with the genotype WW is white fur.

Front

What is the phenotype of a cat with the genotype BW in terms of fur color?

Back

The phenotype of a cat with the genotype BW shows both black and white fur, demonstrating codominance.

Front

If a black cat (BB) is crossed with a white cat (WW), what will be the genotype of the offspring?

Back

The genotype of the offspring will all be BW, showing codominance.

Front

In a Punnett square for incomplete dominance, what percentage of offspring will be wavy hair if both parents are heterozygous (SC)?

Back

50% of the offspring will have wavy hair (SC).

Front

What is the expected phenotype ratio from a cross between two heterozygous individuals (SC x SC) for hair form?

Back

The expected phenotype ratio is 1 straight: 2 wavy: 1 curly.

Front

What does a Punnett square illustrate?

Back

A Punnett square illustrates the possible genotypes of offspring from a genetic cross.

Front

What is the significance of the term 'heterozygous'?

Back

Heterozygous refers to having two different alleles for a particular gene, such as one dominant and one recessive allele.