WorksheetsPunnett Square Practice
Total questions: 22
Worksheet time: 23mins
What are the possible phenotype(s) of the offspring? (A-Brown hair; a-blond hair)
50 % Brown Hair and 50% Blond Hair
25 % Brown Hair and 75% Blond Hair
75 % Brown Hair and 25% Blond Hair
0% Brown Hair and 100% Blond Hair
In pea plants: T=tall t=short
What ratio of the offspring could be short?
0 in 4
1 in 4
2 in 4
4 in 4
In a certain species of plant, the color purple (P) is dominant to the color white (p).
According to the Punnett Square, what is the probability of an offspring being purple?
25%
0%
100%
50%
What is the probability of heterozygous offspring?
0%
100%
50%
25%
What are the possible genotypes for this cross?
TT = 25% Tt= 50% tt=25%
all tall
TT= 75% tt = 25%
Tt = 100%
What genotype would go in box 4?
BB
Bb
bb
What are the possible genotypes of the offspring? (A-Brown hair; a-blond hair)
AA, Aa, aa
AA only
Aa only
aa only
What genotype would go in box 1?
BB
Bb
bb
w= non-white hair
If you cross a horse with WW and a horse with ww what fraction of the offspring would be expected to have white hair?
What is the possibility of this offspring having the dominant trait?
50%
75%
25%
0%
If T=tall and t=short
What is the ratio for short phenotype in this cross?
0:4
1:4
2:4
3:4
The genotype for a yellow plant is...
