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Unit 8 Review: Punnett And Pedigrees

Unit 8 Review: Punnett And Pedigrees

Assessment

Flashcard

Biology

10th Grade

Practice Problem

Hard

Created by

Wayground Content

FREE Resource

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14 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 genetic makeup of offspring from a cross between two parents. It shows all possible combinations of alleles.

2.

FLASHCARD QUESTION

Front

What does it mean for a plant to be heterozygous?

Back

A heterozygous plant has two different alleles for a trait, such as Tt for height, where 'T' is dominant and 't' is recessive.

3.

FLASHCARD QUESTION

Front

What is the expected phenotype ratio of offspring from a cross between a heterozygous tall plant (Tt) and a homozygous short plant (tt)?

Back

50% tall (Tt) and 50% short (tt).

4.

FLASHCARD QUESTION

Front

Define incomplete dominance.

Back

Incomplete dominance is a genetic situation in which one allele does not completely dominate another allele, resulting in a phenotype that is a blend of the two.

5.

FLASHCARD QUESTION

Front

What is the expected phenotype of a heterozygous individual in incomplete dominance?

Back

A blend of both traits is expressed.

6.

FLASHCARD QUESTION

Front

What does a filled square represent in a pedigree chart?

Back

A filled square represents an affected male.

7.

FLASHCARD QUESTION

Front

What is the expected phenotypic ratio of offspring from a cross between two heterozygous long-tailed animals (Ll)?

Back

75% long tails (LL or Ll) and 25% short tails (ll).

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