Punnett Square Practice

Front

What is a phenotype?

Back

A phenotype is the physical appearance or observable characteristics of an organism.

Front

What does it mean to be homozygous?

Back

Having two of the same genes for the same trait is called homozygous.

Front

What is the allele combination for a homozygous recessive trait?

Back

The allele combination for a homozygous recessive trait is 'aa'.

Front

Which of the following is a phenotype: bb, Bb, BB, or blue eyes?

Back

Blue eyes is a phenotype.

Front

What does it mean to be heterozygous?

Back

Having two different genes for a trait is called heterozygous.

Front

What is a genotype?

Back

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

Front

What is the purpose of a Punnett Square?

Back

A Punnett Square is used to predict the genetic outcomes of a cross between two organisms.

Front

What are alleles?

Back

Alleles are different forms of a gene that can exist at a specific locus on a chromosome.

Front

What is the difference between dominant and recessive alleles?

Back

Dominant alleles express their traits even when only one copy is present, while recessive alleles require two copies to express their traits.

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, represented as 'AA'.