Genetics

Front

What is incomplete dominance?

Back

Incomplete dominance is a genetic situation in which one allele does not completely dominate another allele, resulting in a blended phenotype.

Front

What is the genotype for an individual with a recessive trait if green is dominant over purple?

Back

The genotype is gg.

Front

What are the gametes for the genotype BbDd using the FOIL method?

Back

The gametes are BD, bD, Bd, and bd.

Front

What is one form of a gene called?

Back

An allele.

Front

What is the genotype of all offspring from a cross of AA x aa for fur color?

Back

The genotype is Aa.

Front

What is a phenotype?

Back

A phenotype is the observable physical or biochemical characteristics of an organism, as determined by both genetic makeup and environmental influences.

Front

What is a genotype?

Back

A genotype is the genetic constitution of an individual, specifically the alleles present for a particular gene.

Front

What does it mean for a trait to be dominant?

Back

A dominant trait is one that is expressed in the phenotype even when only one copy of the allele is present.

Front

What does it mean for a trait to be recessive?

Back

A recessive trait is one that is only expressed in the phenotype when two copies of the allele are present.

Front

What is the purpose of a Punnett square?

Back

A Punnett square is used to predict the genotypes of offspring from a genetic cross.