Punnett Square Practice

Punnett Square Practice

Assessment

Flashcard

Science

7th Grade

Practice Problem

Hard

Created by

Wayground Content

FREE Resource

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15 questions

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1.

FLASHCARD QUESTION

Front

What is a Punnett Square?

Back

A tool scientists use to determine all the possible genotypes for offspring.

2.

FLASHCARD QUESTION

Front

What does genotype mean?

Back

The genetic makeup of an organism, represented by letters (e.g., BB, Bb, bb).

3.

FLASHCARD QUESTION

Front

What does phenotype mean?

Back

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

4.

FLASHCARD QUESTION

Front

What is the difference between homozygous and heterozygous?

Back

Homozygous means having two identical alleles (e.g., BB or bb), while heterozygous means having two different alleles (e.g., Bb).

5.

FLASHCARD QUESTION

Front

What is the probability of getting a homozygous recessive offspring from a cross between Bb and Bb?

Back

25%.

6.

FLASHCARD QUESTION

Front

If a purple-flowered pea plant (PP) is crossed with a white-flowered pea plant (pp), what will be the phenotype of the offspring?

Back

All offspring will be purple.

7.

FLASHCARD QUESTION

Front

What is the genotype of a homozygous dominant organism?

Back

It is represented by two uppercase letters (e.g., BB).

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