Genetics and Punnett Square Review

Front

Who is known as the Father of Genetics?

Back

Gregor Mendel

Front

In a heterozygous genotype, which allele takes over in the phenotype?

Back

Dominant

Front

What is true about dominant and recessive genes?

Back

Dominant genes mask recessive genes.

Front

What is an example of a homozygous dominant genotype?

Back

BB

Front

In a monohybrid cross between two heterozygous individuals (Aa), what is the probability of obtaining an offspring with a homozygous recessive genotype?

Back

25%.

Front

What does a Punnett Square illustrate?

Back

The possible genetic combinations from a cross between two parents.

Front

Define genotype.

Back

The genetic makeup of an organism.

Front

Define phenotype.

Back

The physical appearance or observable traits of an organism.

Front

What is a heterozygous genotype?

Back

A genotype with two different alleles for a trait (e.g., Aa).

Front

What is a recessive allele?

Back

An allele that is masked by a dominant allele and only expressed in a homozygous condition.