Punnett Squares
Authored by Joanne Cox
Science
7th Grade
NGSS covered
Used 35+ times
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14 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Use the Punnett square to answer the question that follows.
In a monohybrid cross between two organisms heterozygous for a particular trait (Ff), what would be the predicted ratio of the offspring’s genotypes?
A 1 FF: 3 Ff: 1 ff
B 1 FF: 2 Ff: 1 ff
C 2 FF: 2 Ff
D 3 Ff: 1 ff
Tags
NGSS.HS-LS3-3
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The Punnett square shows the cross between cabbage butterflies. B = white and b = yellow.
Why are all the offspring white?
A Both parent butterflies were dominant for white color.
B Only one parent butterfly carried recessive yellow traits.
C Only one parent carried dominant and recessive color genes.
D Both parent butterflies carried recessive genes for yellow color.
Tags
NGSS.MS-LS3-2
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A homozygous dominant black angelfish (BB) is crossed with a homozygous recessive gold angelfish (bb). What is the probability their offspring will be gold?
A 0%
B 25%
C 75%
D 100%
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A red flowered plant (RR) is crossed with a white flowered plant (WW) and produces plants with pink flowers (RW). If two pink flowered plants are crossed, what color offspring could be produced?
A red, white, and pink
B red and white
C pink and red
D pink and white
Tags
NGSS.MS-LS4-4
NGSS.MS-LS3-2
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In a gerbil population, the gene for coarse hair (H) is dominant, while the gene for smooth hair (h) is recessive. One pet store found that most of their customers want coarse-haired gerbils. Which cross between male and female gerbils will produce the greatest number of coarse-haired offspring?
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A snapdragon plant with red flowers (RR) is crossed with a snapdragon plant with white flowers (WW). Snapdragon flowers show incomplete dominance. A Punnett square of the cross is shown below.
If the cross produces four offspring, how many of each color flower would likely be produced?
A four red flowers
B four pink flowers
C two red flowers and two pink flowers
D two white flowers and two pink flowers
Tags
NGSS.HS-LS3-1
NGSS.HS-LS3-2
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Allele A is dominant in mice and allele a is recessive. Two mice with the gene combination Aa breed and produce four offspring as shown below.
Which offspring has the recessive phenotype?
A 1
B 2
C 3
D 4
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