Dihybrid Crosses

Front

What are genotypes?

Back

Genotypes are the genetic makeup of an organism, represented by the combination of alleles (e.g., Aa, DD, bB, yy).

Front

What is a dihybrid cross?

Back

A dihybrid cross is a genetic cross that involves two traits, where two different sets of alleles on two different chromosomes are considered.

Front

What is a phenotype?

Back

A phenotype is the physical trait that is expressed in an organism, resulting from the interaction of its genotype with the environment.

Front

What does homozygous mean?

Back

Homozygous refers to having two identical alleles for a particular gene (e.g., AA or aa).

Front

What is the purpose of a Punnett square?

Back

A Punnett square is used to predict the genetic probability of offspring inheriting particular traits from their parents.

Front

What is the difference between dominant and recessive alleles?

Back

Dominant alleles are expressed in the phenotype even when only one copy is present, while recessive alleles are expressed only when two copies are present.

Front

What is a monohybrid cross?

Back

A monohybrid cross is a genetic cross that considers only one trait, involving one pair of alleles.

Front

What is co-dominance?

Back

Co-dominance is a genetic scenario where both alleles in a heterozygote are fully expressed, resulting in a phenotype that shows both traits.

Front

What is incomplete dominance?

Back

Incomplete dominance is a genetic scenario where the phenotype of a heterozygote is intermediate between the phenotypes of the two homozygotes.

Front

What is an allele?

Back

An allele is a variant form of a gene that can produce different traits.