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Life Science Review: Genetics

Authored by Rachel Thomas

Science

8th Grade

NGSS covered

Used 52+ times

Life Science Review:  Genetics
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20 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

A green pea plant (Gg) is crossed with a yellow pea plant (gg). Describe the genotype of the offspring. (Be sure to remember that the capital letter is dominant).

50% heterozygous and 25% homozygous recessive
50% heterozygous and 50% homozygous recessive
100% homozygous recessive
25% heterozygous and 50% homozygous

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-3

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

A tall plant (Tt) is crossed with a short plant (tt). What is the phenotype of the offspring?

75% tall; 25% short
25% tall; 75% short
50% tall; 50% short
100% tall

Tags

NGSS.HS-LS3-2

NGSS.HS-LS3-3

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

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

50 % Brown Hair and 50% Blond Hair

25 % Brown Hair and 75% Blond Hair

75 % Brown Hair and 25% Blond Hair

0% Brown Hair and 100% Blond Hair

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-3

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

What are the possible genotypes for this cross?

TT = 25% Tt= 50% tt=25%

all tall

TT= 75% tt = 25%

Tt = 100%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-3

5.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Media Image

What allele combination should go in the missing box?

AA
Aa
aa
none of these

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

What is the missing allele?

a
A
AA
aa

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

In mussels, the allele for brown coloring (B) is dominant, and the allele for blue coloring(b) is recessive. For which parental genotypes are 100% of the offspring expected to be blue?

BbxBb
bbxbb
BBxbb
BBxBB

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

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