Monohybrid Cross Practice

Front

What is a monohybrid cross?

Back

A monohybrid cross is a genetic cross between two individuals that differ in one trait, focusing on the inheritance of a single characteristic.

Front

What does the term 'genotype' refer to?

Back

Genotype refers to the genetic makeup of an organism, specifically the alleles it possesses for a particular trait.

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 only expressed when two copies are present.

Front

What is a heterozygous genotype?

Back

A heterozygous genotype consists of two different alleles for a particular gene, such as Gg.

Front

What is a homozygous genotype?

Back

A homozygous genotype consists of two identical alleles for a particular gene, such as GG or gg.

Front

In a Punnett square, what does each box represent?

Back

Each box in a Punnett square represents a possible genotype of the offspring resulting from the genetic cross.

Front

What is the expected phenotypic ratio of a monohybrid cross between two heterozygous parents?

Back

The expected phenotypic ratio is 3:1, where 3 offspring display the dominant trait and 1 displays the recessive trait.

Front

What is the purpose of a Punnett square?

Back

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

Front

What does it mean if an organism is homozygous dominant?

Back

An organism is homozygous dominant if it has two dominant alleles for a trait, such as AA.

Front

What is the significance of the F1 generation in genetics?

Back

The F1 generation is the first generation of offspring from a cross of two parental (P) organisms.