Monohybrid Punnett Square Flashcard

Front

What is a Monohybrid Cross?

Back

A genetic cross between individuals that differ in one trait, typically involving one pair of contrasting traits.

Front

What does a Punnett Square illustrate?

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 is the genotype for yellow seeds in pea plants?

Back

AA or Aa (where A is the dominant allele for yellow seeds).

Front

What is the expected phenotypic ratio of offspring from a cross between two heterozygous parents (Aa x Aa)?

Back

3:1 ratio (3 dominant phenotype: 1 recessive phenotype).

Tags

NGSS.HS-LS3-3

Front

Define phenotype.

Back

The observable physical or biochemical characteristics of an organism, determined by its genotype.

Tags

NGSS.HS-LS3-1

Front

Define genotype.

Back

The genetic constitution of an individual, represented by the alleles inherited from the parents.

Tags

NGSS.HS-LS3-1

Front

What is the dominant trait in sheep for fleece type?

Back

Hairy fleece (F) is dominant over woolly fleece (f).

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Front

What is the expected phenotype of offspring from a cross of ff x ff?

Back

100% woolly fleece (all offspring will have the recessive trait).

Front

What is the purpose of a test cross?

Back

To determine the genotype of an individual with a dominant phenotype by crossing it with a homozygous recessive individual.

Front

What is the phenotypic ratio for a cross between two heterozygous individuals (Ff x Ff) for a dominant trait?

Back

3:1 ratio (3 dominant phenotype: 1 recessive phenotype).