Pedigrees

Pedigrees

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 pedigree?

Back

A pedigree is a diagram that shows the occurrence and appearance of phenotypes of a particular gene or organism and its ancestors.

2.

FLASHCARD QUESTION

Front

What does it mean if a trait is dominant?

Back

A dominant trait is one that will appear in the phenotype even if only one allele is present.

3.

FLASHCARD QUESTION

Front

What does it mean if a trait is recessive?

Back

A recessive trait only appears in the phenotype if two copies of the recessive allele are present.

4.

FLASHCARD QUESTION

Front

What does a filled square represent in a pedigree?

Back

A filled square represents an affected male.

5.

FLASHCARD QUESTION

Front

What does a filled circle represent in a pedigree?

Back

A filled circle represents an affected female.

6.

FLASHCARD QUESTION

Front

What does a half-filled symbol represent in a pedigree?

Back

A half-filled symbol indicates that the individual is a carrier (heterozygous) for a trait.

7.

FLASHCARD QUESTION

Front

What is the genotype for a straight thumb?

Back

The genotype for a straight thumb can be either TT (homozygous dominant) or Tt (heterozygous).

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