Monohybrid Crosses (complete dominance)

Front

What is a homozygous recessive allele?

Back

An allele that has two identical recessive genes, represented as 'tt'.

Front

What is a heterozygous genotype?

Back

A genotype consisting of one dominant and one recessive allele, represented as 'Tt'.

Front

What does homozygous mean?

Back

Having two identical alleles for a particular gene, such as 'TT' or 'tt'.

Front

What is a phenotype?

Back

The physical expression or characteristics of a genetic trait, such as height or color.

Front

What is a genotype?

Back

The genetic makeup of an organism, represented by alleles, such as 'TT', 'Tt', or 'tt'.

Front

What does complete dominance mean in genetics?

Back

A situation where the dominant allele completely masks the effect of the recessive allele in the phenotype.

Front

What is a Punnett square?

Back

A diagram used to predict the outcome of a genetic cross by showing the possible combinations of alleles.

Front

What is the significance of the dominant allele in a monohybrid cross?

Back

The dominant allele is expressed in the phenotype even if only one copy is present.

Front

How do you determine the offspring's genotype in a monohybrid cross?

Back

By crossing the alleles of the parents and filling in the Punnett square.

Front

What is the expected phenotypic ratio in a monohybrid cross?

Back

Typically, a 3:1 ratio of dominant to recessive phenotypes.