Punnett squares

Punnett squares

Assessment

Flashcard

Science

8th Grade

Hard

NGSS
HS-LS3-3, HS-LS3-1

Standards-aligned

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15 questions

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1.

FLASHCARD QUESTION

Front

What is a Punnett square?

Back

A Punnett square is a diagram used to predict the genotype and phenotype combinations of offspring from a genetic cross.

2.

FLASHCARD QUESTION

Front

What do the letters in a Punnett square represent?

Back

The letters represent alleles, where uppercase letters denote dominant alleles and lowercase letters denote recessive alleles.

3.

FLASHCARD QUESTION

Front

What is the genotype of an organism with two identical alleles?

Back

The genotype is homozygous.

4.

FLASHCARD QUESTION

Front

What is the genotype of an organism with two different alleles?

Back

The genotype is heterozygous.

5.

FLASHCARD QUESTION

Front

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

Back

The phenotypic ratio is 3:1.

6.

FLASHCARD QUESTION

Front

What is the expected phenotype ratio for a dihybrid cross (AaBb x AaBb)?

Back

The expected phenotype ratio is 9:3:3:1.

7.

FLASHCARD QUESTION

Front

What is incomplete dominance in genetics?

Back

Incomplete dominance is a form of inheritance where the phenotype of the heterozygote is intermediate between the phenotypes of the homozygotes.

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