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Codominance vs incomplete dominance

Codominance vs incomplete dominance

Assessment

Flashcard

Biology

9th 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 codominance?

Back

Codominance is a genetic scenario where both alleles in a heterozygote are fully expressed, resulting in offspring with a phenotype that is neither dominant nor recessive. Example: A flower with both red and white petals (RW).

2.

FLASHCARD QUESTION

Front

What is incomplete dominance?

Back

Incomplete dominance is a genetic scenario where the phenotype of a heterozygote is intermediate between the phenotypes of the two homozygotes. Example: A red flower (RR) crossed with a white flower (WW) produces pink flowers (RW).

3.

FLASHCARD QUESTION

Front

What is the phenotype of a plant with genotype SC in hair form gene?

Back

The phenotype of a plant with genotype SC is wavy hair, as it is the result of incomplete dominance between straight hair (SS) and curly hair (CC).

4.

FLASHCARD QUESTION

Front

If two wavy-haired parents (SC) have children, what is the probability of having a child with wavy hair?

Back

The probability of having a child with wavy hair (SC) is 50%.

5.

FLASHCARD QUESTION

Front

What does a Punnett square represent in genetics?

Back

A Punnett square is a diagram that predicts the genotypes of offspring from a cross between two parents, showing the probability of each genotype.

6.

FLASHCARD QUESTION

Front

In a cross between a black (BB) and a white (WW) animal, if the offspring are grey (BW), what type of inheritance is this?

Back

This is an example of incomplete dominance.

7.

FLASHCARD QUESTION

Front

What is the expected phenotype ratio in the offspring of a cross between two heterozygous plants (RW x RW) showing incomplete dominance?

Back

The expected phenotype ratio is 1 red (RR): 2 pink (RW): 1 white (WW).

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