Punnett Square

Front

What does a Punnett Square represent in genetics?

Back

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

Front

What is the genotype for a homozygous dominant individual?

Back

AA

Front

In a genetic cross, what does a heterozygous genotype look like?

Back

A heterozygous genotype consists of two different alleles, such as Aa.

Front

What is the phenotypic ratio of offspring from a cross between a heterozygous black mouse (Bb) and a white mouse (bb)?

Back

2 Black: 2 White or 1 Black: 1 White.

Front

What is the probability of obtaining a brown-haired offspring if B = brown hair and b = blonde hair in a cross between Bb and bb?

Back

75%.

Front

Who is known as the Father of Genetics?

Back

Gregor Mendel.

Front

What does the term 'allele' refer to in genetics?

Back

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

Front

What is the difference between phenotype and genotype?

Back

Phenotype refers to the observable traits of an organism, while genotype refers to the genetic makeup.

Front

What does it mean for a trait to be dominant?

Back

A dominant trait is one that is expressed in the phenotype even when only one copy of the allele is present.

Front

What is the expected genotypic ratio from a monohybrid cross?

Back

1:2:1.