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Monohybrid Cross Practice

Authored by Karen Faucett

Biology

8th - 10th Grade

NGSS covered

Used 87+ times

Monohybrid Cross Practice
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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Brown hair is dominant over light hair. If a homozygous parent (Aa) is crossed with a heterozygous recessive parent (aa), their children will have...

Only Brown Hair

Only Light Hair

Some brown and some light

Tags

NGSS.HS-LS3-1

2.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

In guinnea pigs, black eyes are dominant to red eyes. A male guinnea pig that is heterozygous is crossed with a female that is homozygous recessive. What are the expected phenotypes of their offspring?

Red Eyed and Black Eyed

Only Red Eyed

Only Black Eyed

Tags

NGSS.HS-LS3-1

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

In cacti, long arms (A) are dominant to short arms (a).  Suppose 2 heterozygous cacti are crossed.  What percentage of their offspring are expected to have short arms?

0%
25%
75%
100%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-3

4.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Media Image

T - tall and t = short
In the punnett square below, what belongs in the missing square

tt
Tt
Bb
TT

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-3

5.

MULTIPLE CHOICE QUESTION

5 mins • 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

NGSS.HS-LS3-2

6.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Media Image

If green is dominant over purple, then what is the genotype for this individual?

Purple
Green
GG
gg

Tags

NGSS.HS-LS3-1

7.

MULTIPLE SELECT QUESTION

3 mins • 1 pt

In guinea pigs, the allele for short hair is dominant. If all the guinea pigs are born short haired what are the possible genotypes of the parents? (There are two possible combinations.)

Ss + Ss

SS + SS

SS + Ss

ss + ss

Tags

NGSS.HS-LS3-3

NGSS.HS-LS3-2

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