G = green, g = yellow The genotype for a yellow plant is...

all of the choices result in yellow

Which of the following scenarios would produce a recessive phenotype?

Inheriting two recessive alleles

Inheriting at least one copy of a recessive allele

Inheriting two dominant alleles

Inheriting a mutated copy of a recessive allele

Which of the following is an example of a dominant/recessive phenotype pattern?

A person needs to inherit multiple alleles in a pathway to produce a protein

A pea plant inherits one allele for smooth seeds and produces smooth seeds

A pea plant needs to inherit two copies of the allele for wrinkled seeds to produce that phenotype

Two alleles are expressed evenly to create a spotted phenotype in cow coat color

Which of the following describes a dominant phenotype?

A trait where even one copy of the dominant allele masks the phenotype of the recessive allele

A trait where individuals have to inherit two copies of the dominant allele to see the trait

A trait that is inherited in a unique blending pattern

An inheritance pattern where both alleles are expressed evenly to produce a composite trait

What are the possible phenotype(s) of the offspring? (A-Brown hair; a-blond hair)

75 % Brown Hair and 25% Blond Hair

50 % Brown Hair and 50% Blond Hair

25 % Brown Hair and 75% Blond Hair

0% Brown Hair and 100% Blond Hair

Dominant and Recessive Traits

Quiz

•

Science

•

9th Grade

•

Practice Problem

•

Medium

•

NGSS

HS-LS3-1, HS-LS3-2, HS-LS3-3

+2

Standards-aligned

Nisa Stapp

Used 16+ times

FREE Resource

40 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 2 pts

What does homozygous mean?

having two different alleles of a particular gene or genes.

having two of the same alleles of a particular gene or genes.

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

2.

MULTIPLE CHOICE QUESTION

1 min • 2 pts

A homozygous brown mouse is crossed with a heterozygous brown mouse (tan is the recessive color).

100 % tan

100 % brown

50 % brown and 50% tan

75 % brown and 25 % tan

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-3

3.

MULTIPLE CHOICE QUESTION

1 min • 2 pts

Which describes the following? BB

Homozygous

Heterozygous

recessive

Option 4

Tags

NGSS.HS-LS3-1

4.

MULTIPLE SELECT QUESTION

1 min • 2 pts

Which punnet square has a 75% chance of the dominant trait showing up.

Tags

NGSS.HS-LS3-3

5.

MULTIPLE CHOICE QUESTION

1 min • 2 pts

aa will always be ...

dominant

recessive

either

neither

Tags

NGSS.HS-LS3-1

6.

MULTIPLE CHOICE QUESTION

1 min • 2 pts

Aa is

homozygous

heterozygous

recessive

all of the above

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

7.

MULTIPLE CHOICE QUESTION

1 min • 2 pts

How many boxes would say BB?

0

1

2

3

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

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Dominant and Recessive Traits

40 questions

What does homozygous mean?

A homozygous brown mouse is crossed with a heterozygous brown mouse (tan is the recessive color).

Which describes the following? BB

Which punnet square has a 75% chance of the dominant trait showing up.

aa will always be ...

Aa is

How many boxes would say BB?

What allele combination should go in the missing box?

Black hair color is dominant to white hair color in mice. Determine the phenotypic ratio for the offpring of a heterozygous black mouse and a white mouse.

Biologists have found that a form of deafness is a recessive trait in dogs. If a female dog that is heterozygous for the trait mates with a male dog that is deaf, what percent of their offspring will be deaf?

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