Punnett Squares Quiz
10 Questions
| Attempts: 4460
Named after Reginald C. Punnett, the square has been used to predict genotypes one gets from a breeding experiment. Play this quiz and learn more about it. A genotype is the organism's genetic makeup, and creating a Punnett square requires knowledge of the genetic composition of the parents. This practice trivia quiz is made up of Punnett square questions to help test what you know so far. If you find the quiz helpful, do share it with your friends. All the best!
Questions and Answers
- 1.A heterozygous tall pea plant is crossed with a short plant. Tall (T) is dominant to short (t) plants. The probability that the offspring plant will be tall is:
- A.
75%
- B.
25%
- C.
50%
- D.
100%
- 2.Brown (B) is dominant over white (b) in foxes. A homozygous brown fox is crossed with a white fox. The probability that the fox offspring will be white phenotype is ___ and a brown phenotype is ___.
- A.
0 and 100
- B.
100 and 0
- C.
50 and 50
- D.
25 and 75
- 3.In cats, yellow fur is dominant over white fur. A heterozygous cat is mated with a white cat. The possible genotypes of offspring that could occur would be:
- A.
YY
- B.
Yy
- C.
Yy
- D.
Yyy
- 4.Organisms that have two identical alleles (BB or bb) for a particular trait are said to be __________.
- A.
Homozygous
- B.
Dominant
- C.
Hybrid
- D.
Heterozygous
- 5.
What percentage of pea plants will be wrinkled and purple? The wrinkled allele is represented by a dominant C and smooth is a recessive c allele. The color purple is represented by a dominant P and a white color is represented by a recessive p.- A.
75%
- B.
100%
- C.
50%
- D.
25%
- 6.
(A) means no dimples and (a) means dimples. What is the probability the person below would have no dimples?
- A.
75%
- B.
65%
- C.
25%
- D.
50%
- 7.
What is the probability the pea plant will be yellow and wrinkled? (G is green) (g is yellow) (B is smooth) (b is wrinkled)
- A.
0 %
- B.
25%
- C.
50%
- D.
100%
- 8.
The wrinkled allele is represented by a dominant C and smooth is a recessive c allele. The color purple is represented by a dominant P and a white color is represented by a recessive p. What percentage of plants are CcPP?
- A.
50%
- B.
60%
- C.
40%
- D.
80%
- 9.A homozygous tall pea plant is crossed with a short plant. Tall (T) is dominant to short (t) plants. Click on all of the possible genotypes of the pea plant.
- A.
TT
- B.
Tt
- C.
Tt
- D.
Tall
- E.
Short
- 10.A homozygous tall pea plant is crossed with a short plant. Tall (T) is dominant to short (t) plants. Click on all of the possible phenotypes of the pea plant.
- A.
TT
- B.
Tt
- C.
Tt
- D.
Tall
- E.
Short
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