WorksheetsScience punnet squares
Total questions: 25
Worksheet time: 27mins
Who's genotypes are on the outside?
Parents
Offspring
Sisters
None of the above
Which one is a genotype
AA
Green eyes
Brown hair
None of the above
Which one is a phenotype
aa
AA
Freckles
None of above
What percent of offspring will have brown hair ( dominant )
100%
50%
25%
0%
Homozygous is when
The alleles are different
The alleles are the same
The alleles don't exist
The alleles are opposites
Heterozygous is when
The alleles are different
The alleles are the same
The alleles are absent
The alleles are the parents
A dominant gentotype is always
Lowercase
Capital
Nonexistent
Different
A recessive genotype is always
Capital
Absent
Lowercase
None of the above
What percent of offspring will be Tall
75%
25%
50%
0%
The image shows a
Graph
Punnett square
Allele
Phenotype
BB = brown eyes Bb = brown eyes bb = blue eyes
What percentage of offspring will have blue eyes
25%
100%
0%
50%
In the punnett square shown what must the missing parents genotype be?
BB
Bb
bb
None of the above
Is BB dominant or recessive?
Dominant
Recessive
I don't know
None of the above
Is tt dominant or recessive?
Dominant
Recessive
Who knows?
None of the above
Is a hybrid genotype Homozygous?
No
Yes
Don't Know
None the above
Who was the founder of genetics?
Gregor Mendel
Albert Einstein
Isaac Newton
Leonardo da Vinci
Which following genotype is heterozygous?
HH
Hh
bb
BB
How many boxes would say BB?
4
1
2
0
What type of "square" helps us solve genetic problems?
Genetic square
Mendel square
Punnett square
None of the above
Tt, Pp, Bb are examples of what type of allele?
Homozygous
Heterozyous
Don't know
Phenotype
What genotypes will be in each square
1: Dd, 2:dd 3:DD 4: Dd
1: DD, 2:Dd, 3:Dd, 4:dd
1: Dd, 2:Dd 3:Dd 4: Dd
1: DD, 2:DD, 3:DD 4: DD
What's the probability of having a recessive offspring
50%
100%
25%
0%
If B = brown hair and b = blonde hair, what is the probability of brown hair?
50%
25%
100%
75%
What are the Mother's genotypes
BB
Bb
bb
BB
A punnett square is used for
Predicting the genotypes of the offspring
Playing ticktacktoe
Nothing
None of the above
