Genetics and Pedigrees

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 does a non-filled shape in a pedigree represent?

Back

An individual who is homozygous recessive for a trait.

Front

Define genetics.

Back

The study of heredity and the variation of inherited characteristics.

Front

What must the parents be for an autosomal recessive disorder to appear in their offspring?

Back

The parents must be heterozygous carriers of the disorder.

Front

What is codominance?

Back

A genetic scenario where both alleles in a heterozygote are fully expressed, resulting in offspring with a phenotype that is neither dominant nor recessive.

Front

What is a pedigree chart?

Back

A diagram that shows the occurrence and appearance of phenotypes of a particular gene or organism and its ancestors.

Front

What is the difference between homozygous and heterozygous?

Back

Homozygous means having two identical alleles for a particular gene, while heterozygous means having two different alleles.

Front

What is a Punnett Square?

Back

A diagram used to predict the outcome of a particular cross or breeding experiment.

Front

What does it mean if an individual is homozygous dominant?

Back

An individual with two dominant alleles for a trait.

Front

What is the significance of the F1 generation in genetics?

Back

The first filial generation, which is the offspring of the parental generation, used to study inheritance patterns.