Punnett Squares and Pedigrees

Punnett Squares and Pedigrees

Assessment

Flashcard

Biology

8th - 9th Grade

Hard

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16 questions

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1.

FLASHCARD QUESTION

Front

What is a phenotype?

Back

A phenotype is the observable physical or biochemical characteristics of an organism, as determined by both genetic makeup and environmental influences. Example: red hair.

2.

FLASHCARD QUESTION

Front

What is a genotype?

Back

A genotype is the genetic constitution of an individual, often represented by letters (e.g., Aa, AA, aa). It determines the potential traits of an organism.

3.

FLASHCARD QUESTION

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.

4.

FLASHCARD QUESTION

Front

What is the difference between dominant and recessive alleles?

Back

Dominant alleles are expressed in the phenotype even if only one copy is present (e.g., A), while recessive alleles are only expressed if two copies are present (e.g., aa).

5.

FLASHCARD QUESTION

Front

How is a dominant allele represented?

Back

A dominant allele is represented by a capital letter (e.g., A).

6.

FLASHCARD QUESTION

Front

How is a recessive allele represented?

Back

A recessive allele is represented by a lowercase letter (e.g., a).

7.

FLASHCARD QUESTION

Front

What does an open circle represent in a pedigree chart?

Back

An open circle represents a Not Affected Female in a pedigree chart.

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