Punnett Squares

Punnett Squares

Assessment

Flashcard

Biology

7th Grade

Hard

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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 outcome of a genetic cross by showing the possible combinations of alleles from the parents.

2.

FLASHCARD QUESTION

Front

What do the letters G and g represent in genetics?

Back

G represents a dominant allele (green scales) and g represents a recessive allele (white scales).

3.

FLASHCARD QUESTION

Front

What is the expected offspring ratio when crossing two heterozygous parents (Gg x Gg)?

Back

The expected offspring ratio is 3 green scales to 1 white scale.

4.

FLASHCARD QUESTION

Front

What is a genotype?

Back

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

5.

FLASHCARD QUESTION

Front

What is a phenotype?

Back

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

6.

FLASHCARD QUESTION

Front

What is the probability of a child having blue eyes if both parents are brown-eyed (Bb)?

Back

The probability is 25%.

7.

FLASHCARD QUESTION

Front

What does it mean if two organisms have the same phenotype but different genotypes?

Back

It means they exhibit the same physical traits but have different genetic compositions (e.g., one is homozygous BB and the other is heterozygous Bb).

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