Incomplete and CoDominance

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 codominance?

Back

A genetic scenario where both alleles in a heterozygote are fully expressed, resulting in offspring with a phenotype that shows both traits equally.

Front

What phenotype results from a cross between a straight-haired (SS) and a curly-haired (CC) parent?

Back

Wavy hair (SC) due to incomplete dominance.

Front

If two parents with wavy hair (SC) have children, what is the probability of having another child with wavy hair?

Back

50% chance of having a child with wavy hair (SC).

Front

What is the phenotype of a plant with genotype TT?

Back

Tall plant, as T (tall) is dominant.

Front

What is the phenotype of a plant with genotype SS?

Back

Short plant, as S (short) is recessive.

Front

In a Punnett square, what does a 1:2:1 ratio indicate?

Back

It indicates incomplete dominance, showing one homozygous dominant, two heterozygous, and one homozygous recessive.

Front

What is the result of crossing two plants with the genotype TS?

Back

The offspring can be TT, TS, or SS, showing incomplete dominance.

Front

What does the term 'heterozygous' mean?

Back

Having two different alleles for a particular gene, such as SC for hair type.

Front

What does the term 'homozygous' mean?

Back

Having two identical alleles for a particular gene, such as SS or CC.