Monohybrid Cross Practice

Front

What is a monohybrid cross?

Back

A monohybrid cross is a genetic mix between two individuals who have homozygous genotypes, focusing on one trait. It examines the inheritance of a single characteristic.

Front

What does homozygous mean?

Back

Homozygous refers to having two identical alleles for a particular gene, either dominant (AA) or recessive (aa).

Front

What does heterozygous mean?

Back

Heterozygous refers to having two different alleles for a particular gene, one dominant and one recessive (Aa).

Front

What is a Punnett square?

Back

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

Front

What does dominant allele mean?

Back

A dominant allele is an allele that expresses its trait even when only one copy is present (e.g., A in Aa).

Front

What does recessive allele mean?

Back

A recessive allele is an allele that only expresses its trait when two copies are present (e.g., aa).

Front

If a homozygous dominant individual (AA) is crossed with a homozygous recessive individual (aa), what will be the genotype of the offspring?

Back

All offspring will be heterozygous (Aa).

Front

In a monohybrid cross, what is the expected phenotypic ratio of the offspring?

Back

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

Front

What is the significance of the letter 'F' in genetics?

Back

In genetics, 'F' often represents a dominant trait, while 'f' represents a recessive trait.

Front

What is the genotype of a person with curly hair if curly hair is recessive?

Back

The genotype would be homozygous recessive (ss).