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Dihybrid Cross Code

Authored by Charles Martinez

Biology

7th - 12th Grade

NGSS covered

Dihybrid Cross Code
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6 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

What genotype is missing from this Punnett Square?

RrYy
RRYY
rryy
RrYY

Tags

NGSS.HS-LS3-2

NGSS.HS-LS3-1

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

Based off this punnett square, what fraction of the offspring will have wrinkled, yellow seeds?

9/16

3/16

1/16

16/16

Tags

NGSS.HS-LS3-2

NGSS.HS-LS3-3

NGSS.HS-LS3-1

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A male beetle has the genotype Ttbb. If this beetle mates with a female with genotype TTBb, what is the chance their offspring will have the genotype TtBb?

12.5%
25%
50%
75%

Tags

NGSS.HS-LS3-2

NGSS.HS-LS3-3

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the genotype for a pea plant heterozygous for round seeds (R), and homozygous recessive for green seeds (y)?

Ry
RRyy
RrYy
Rryy

Tags

NGSS.HS-LS3-2

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What fraction of offspring from the cross AaBB x Aabb will be heterozygous for both traits?

1/16
1/4
1/2
3/16

Tags

NGSS.HS-LS3-3

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Cross Two Homozygous plants
(
RRYY x rryy)
R = round seeds, r  = wrinkled seeds Y = yellow seeds, y = green seeds
What percent will have Round and Yellow seeds? 

0%
25%
50%
100%

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