Punnett Squares

Front

What does each box in a Punnett Square represent in terms of genotype probability?

Back

25% probability of an offspring's genotype.

Front

What is the definition of homozygous recessive?

Back

An organism with two identical recessive alleles for a trait, represented as 'tt'.

Front

How many alleles does each person carry for a given trait?

Back

2 alleles.

Front

What is a heterozygous genotype?

Back

A genotype consisting of two different alleles for a trait, represented as 'Bb'.

Front

What is the term for the physical appearance of an organism?

Back

Phenotype.

Front

What is a Punnett Square used for?

Back

To predict the genotypes and phenotypes of offspring from parental genotypes.

Front

What are alleles?

Back

Different forms of a gene that can exist at a specific locus on a chromosome.

Front

What is the difference between genotype and phenotype?

Back

Genotype refers to the genetic makeup, while phenotype refers to the observable traits.

Front

What does it mean for an organism to be homozygous dominant?

Back

An organism with two identical dominant alleles for a trait, represented as 'TT'.

Front

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

Back

3:1 ratio of dominant to recessive phenotypes.