Monohybrids 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 dominant mean in genetics?

Back

Dominant refers to an allele that expresses its trait even when only one copy is present in the genotype.

Front

What does recessive mean in genetics?

Back

Recessive refers to an allele that only expresses its trait when two copies are present in the genotype.

Front

What are alleles?

Back

Alleles are different forms of a gene that determine specific traits.

Front

What is the genotype?

Back

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

Front

What is the phenotype?

Back

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

Front

If a plant has the genotype Tt, what are its possible phenotypes?

Back

The possible phenotypes are long arms (dominant trait) since T is dominant over t.

Front

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

Back

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

Front

What is a Punnett square?

Back

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

Front

If two heterozygous parents (Tt) are crossed, what percentage of offspring will be homozygous dominant?

Back

25% of the offspring will be homozygous dominant (TT).