Complex Inheritance

Front

What is codominance in genetics?

Back

Codominance is a non-Mendelian inheritance pattern where both traits are dominant and both appear in the organism with a heterozygous genotype.

Front

What is the number of alleles that blood types consist of?

Back

Blood types consist of 3 different alleles: A, B, and O.

Front

What is the genotype of a person with type A blood, who had a father with type O blood?

Back

The genotype is AO.

Front

What is incomplete dominance?

Back

Incomplete dominance is a pattern of inheritance where the traits blend together in the offspring.

Front

What does it mean when traits are expressed equally?

Back

It refers to codominance, where both traits are fully expressed in the phenotype.

Front

What is a polygenic trait?

Back

A polygenic trait is controlled by multiple genes, resulting in a range of phenotypes.

Front

What is the difference between dominant and recessive traits?

Back

Dominant traits are expressed in the phenotype even if only one allele is present, while recessive traits are expressed only when two recessive alleles are present.

Front

What is an example of codominance?

Back

An example of codominance is AB blood type, where both A and B alleles are expressed.

Front

What is an example of incomplete dominance?

Back

An example of incomplete dominance is the flower color in snapdragons, where red and white flowers produce pink offspring.

Front

How many alleles are there for the ABO blood group system?

Back

There are three alleles: A, B, and O.