Punnett Square Science Review

Quiz
•
Science
•
7th Grade
•
Hard
+2
Standards-aligned
Charles Martinez
FREE Resource
12 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which best describes what a Punnett square determines?
the mathematical probability that DNA has a mutation
the mathematical probability that a trait will be inherited
the mathematical probability that offspring will survive to reproduce more offspring
the mathematical probability that a child will have larger feet than either the father or mother
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The diagram below shows a parental cross.
100% RED
100% white
50% red and 50% white
75% red and 25% white
Tags
NGSS.HS-LS3-1
NGSS.HS-LS3-2
3.
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?
1 FF: 3 Ff: 1 ff
1 FF: 2 Ff: 1 ff
2 FF: 2 Ff
3 Ff: 1 ff
Tags
NGSS.HS-LS3-3
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In some plants, red flowers are dominant (R) and white flowers are recessive (r). Two plants are crossed and the offspring have a possibility of red flowers and white flowers. Which Punnett square shows the cross and its offspring?
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Freckles (F) are dominant to not having freckles (f). The diagram shows the cross of a homozygous dominant parent (FF) with a parent of an unknown genotype for freckles. What is the unknown genotype and phenotype for the parent?
homozygous dominant with freckles
homozygous recessive without freckles
heterozygous with freckles
heterozygous without freckles
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Two black guinea pigs were crossed and they produced a litter of 4 black and 3 white guinea pigs. Which best explains this occurrence?
White fur is dominant to black fur.
White fur was the result of a mutation.
Both parents were heterozygous for black fur.
Both parents were homozygous for black fur.
Tags
NGSS.MS-LS3-2
NGSS.MS-LS4-4
7.
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?
Both parent butterflies were dominant for white color.
Only one parent butterfly carried recessive yellow traits.
Only one parent carried dominant and recessive color genes.
Both parent butterflies carried recessive genes for yellow color.
Tags
NGSS.MS-LS4-4
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