WorksheetsPunnett Square Practice
Total questions: 10
Worksheet time: 10mins
If an organism is said to have a genotype of "aa", which of the following then best describes it?
Homozygous recessive
Homozygous dominant
Heterozygous dominant
Heterozygous recessive
If round seeds (R) are dominant to wrinkled seeds, which best describes a seed that's heterozygous?
rr
RR
Rr
Wrinkled
Yellow flowers (Y) are dominant to white flowers. Which best describes a white flower?
YY
Homozygous dominant
Heterozygous recessive
yy
Yellow flowers (Y) are dominant to white flowers. Which best describes a genotype of "Yy"?
yellow
Homozygous dominant
Heterozygous recessive
yy
Based on the Punnett Square shown, what should fill in the missing box?
GG
Gg
gg
gG
Based on the Punnett Square shown, what percent of the offspring will probably be a green pea?
25%
50%
75%
100%
Based on the Punnett Square shown, what should go in the missing boxes?
BB
Bb
bb
white flower
Based on the Punnett Square shown, what is the probability that the child will have blue eyes?
0%
25%
505
75%
100%
Based on the Punnett Square shown, what should go in the missing boxes?
tt
Tt
tT
TT
Based on the Punnett Square shown, what best describes the alleles of missing boxes?
tt
Tt
Homozygous dominant
Heterozygous
