Punnett Square Vocabulary Flashcard

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 from the parents.

Front

What does homozygous mean?

Back

Homozygous refers to having two identical alleles for a particular gene, such as AA or aa.

Front

What does heterozygous mean?

Back

Heterozygous refers to having two different alleles for a particular gene, such as Aa.

Front

What is a genotype?

Back

A genotype is the genetic makeup of an organism, represented by the alleles it carries (e.g., AA, Aa, aa).

Tags

NGSS.HS-LS3-2

Front

What is a phenotype?

Back

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

Front

What is an allele?

Back

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

Tags

NGSS.HS-LS3-2

Front

What does dominant mean in genetics?

Back

Dominant refers to an allele that expresses its trait even when only one copy is present (e.g., A in Aa).

Front

What does recessive mean in genetics?

Back

Recessive refers to an allele that only expresses its trait when two copies are present (e.g., aa).

Front

What is the expected phenotypic ratio from a monohybrid cross?

Back

The expected phenotypic ratio from a monohybrid cross is typically 3:1.

Tags

NGSS.HS-LS3-3

Front

How many alleles do humans carry for each trait?

Back

Humans carry 2 alleles for each trait, one inherited from each parent.

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2