Genetic Probability

Front

What is a dominant allele?

Back

A dominant allele is a variant of a gene that always shows up in an organism when it is present.

Front

What does it mean for an organism to be homozygous?

Back

An organism is homozygous when it has two identical alleles for a trait.

Front

What is heredity?

Back

Heredity is the passing of traits from parents to offspring.

Front

What is a heterozygous genotype?

Back

A heterozygous genotype has two different alleles for a trait, such as Rr.

Front

What is a Punnett Square?

Back

A Punnett Square is a chart that shows all the possible combinations of alleles that can result from a genetic cross.

Front

What is a recessive allele?

Back

A recessive allele is a variant of a gene that only shows up in an organism if two copies are present.

Front

What is codominance?

Back

Codominance is a situation in genetics where both alleles in a heterozygous organism contribute to the phenotype.

Front

What is the purpose of a genetic cross?

Back

A genetic cross is used to determine the genetic makeup of offspring from two parent organisms.

Front

What is a phenotype?

Back

A phenotype is the observable physical or biochemical characteristics of an organism, determined by its genotype.

Front

What is a genotype?

Back

A genotype is the genetic constitution of an organism, represented by the alleles it possesses.