monohybrid and dihybrid cross

Front

What is a Dihybrid Cross?

Back

A genetic cross that involves two different traits, each represented by two alleles, allowing for the prediction of genetic probabilities for two traits simultaneously.

Front

What is a Monohybrid Cross?

Back

A genetic cross that involves only one trait, represented by two alleles, used to predict the inheritance of that trait.

Front

Define Co-Dominance.

Back

A genetic scenario where both alleles in a heterozygous individual contribute equally and visibly to the phenotype.

Front

Define Incomplete Dominance.

Back

A genetic scenario where the phenotype of heterozygous individuals is intermediate between the phenotypes of the two homozygous parents.

Front

What is the expected phenotypic ratio in a Monohybrid Cross?

Back

The expected phenotypic ratio is 3:1 for dominant to recessive traits.

Front

What is the expected phenotypic ratio in a Dihybrid Cross?

Back

The expected phenotypic ratio is 9:3:3:1 for the four possible phenotypes.

Front

What is the purpose of a Punnett Square?

Back

A tool used to predict the genotypes and phenotypes of offspring from a genetic cross.

Front

What does it mean for an organism to be homozygous?

Back

An organism that has two identical alleles for a particular trait.

Front

What does it mean for an organism to be heterozygous?

Back

An organism that has two different alleles for a particular trait.

Front

How do you calculate the probability of an offspring having a specific genotype?

Back

By using a Punnett Square to determine the ratio of the desired genotype to the total number of offspring.