Genetics (Mendelian and Non-Mendelian)

Front

What is the genotype for a person with type B blood?

Back

I^BI^B or I^Bi

Front

What does it mean to be homozygous?

Back

Having two of the same alleles for a trait.

Front

What type of inheritance is represented when both alleles are expressed equally?

Back

Codominance.

Front

What are the possible genotypes when a homozygous dominant dog (BB) is crossed with a heterozygous dog (Bb)?

Back

50% BB and 50% Bb.

Front

If a horse with WW is crossed with a horse with ww, what fraction of the offspring will have white hair?

Back

All.

Front

What is the definition of a phenotype?

Back

The observable physical or biochemical characteristics of an organism, as determined by both genetic makeup and environmental influences.

Front

What is the difference between dominant and recessive alleles?

Back

Dominant alleles express their trait even when only one copy is present, while recessive alleles require two copies to express their trait.

Front

What is incomplete dominance?

Back

A form of inheritance where the phenotype of a heterozygote is intermediate between the phenotypes of the two homozygotes.

Front

What is polygenic inheritance?

Back

A type of inheritance where multiple genes influence a trait, resulting in a continuous range of phenotypes.

Front

What is a Punnett square used for?

Back

To predict the genotypes and phenotypes of offspring from a genetic cross.