monohybrid cross

Front

What is a monohybrid cross?

Back

A genetic cross between individuals that differ in one trait, focusing on the inheritance of a single pair of alleles.

Front

What is an allele?

Back

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

Front

What does it mean for an allele to be dominant?

Back

A dominant allele is one that expresses its trait even when only one copy is present in the genotype.

Front

What does it mean for an allele to be recessive?

Back

A recessive allele only expresses its trait when two copies are present in the genotype.

Front

What is the genotype of an organism?

Back

The genotype is the genetic makeup of an organism, represented by the alleles it carries.

Front

What is the phenotype of an organism?

Back

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

Front

What is a homozygous genotype?

Back

A homozygous genotype has two identical alleles for a particular gene (e.g., TT or tt).

Front

What is a heterozygous genotype?

Back

A heterozygous genotype has two different alleles for a particular gene (e.g., Tt).

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

How many alleles do humans carry for each trait?

Back

Humans carry two alleles for each trait, one inherited from each parent.