Biology: Genetics And Punnett Squares Quiz!
8 Questions
| Total Attempts: 10592
This quiz is about Punnett squares and DNA genetic genes. How DNA works and an easier way to determine the percentage of genes. This quiz has eight essential questions to test your knowledge on the same. So, let's get started.
Questions and Answers
- 1.A heterozygous tall (Tt) plant is crossed at with a short plant (tt). The probability that offspring plants will be tall is:
- A.
25%
- B.
50%
- C.
75%
- D.
100%
- 2.Organisms that have two different alleles for a particular trait are said to be:
- A.
Hybrid
- B.
Homozygous
- C.
Heterozygous
- D.
Dominant
- 3.
![According to the dihybrid cross below, what proportion of peas would be green and smooth?
- ProProfs]( "According to the dihybrid cross below, what proportion of peas would be green and smooth?")
According to the dihybrid cross below, what proportion of peas would be green and smooth?- A.
9/16
- B.
1/4
- C.
3/8
- D.
1/16
- 4.
![What is the probability that a hamster will have black, fine hair?
- ProProfs]( "What is the probability that a hamster will have black, fine hair?")
What is the probability that a hamster will have black, fine hair?- A.
2/16 (1/8)
- B.
4/16 (1/4)
- C.
1/16
- D.
8/16 (1/2)
- 5.When a plant breeder crossed two red roses, 78% of the offspring had red flowers and 22% had white flowers. According to these results, the allele for red flowers is most likely:
- A.
Recessive
- B.
Sex-linked
- C.
Dominant
- D.
Codominant
- 6.In pepper plants, the allele for hot flavor (H) is dominant to the allele for mild flavor (h). A farmer crosses a homozygous dominant plant with a recessive (mild) plant. What percentage of the offspring from this cross will have hot flavor?
- A.
25%
- B.
50%
- C.
75%
- D.
100%
- 7.What are the four main bases of D.N.A.?
- A.
Alleles, bacteria, D.N.A., and sunlight.
- B.
Adenine, guanine, cytosine, and thymine.
- C.
Oil, chinchilla, albino, and cement.
- D.
Bristles, onions, grease, and tar.
- 8.White fur(b) in guinea pigs is dominated by black fur(B). What will be the probability of a hybrid offspring in the cross: BB x Bb?
- A.
0%
- B.
25%
- C.
50%
- D.
100%
Our lesson is on punnett squares. You have learned about dominant and recessive traits and modes of inheritance.
Questions: 10 | Attempts: 3749 | Last updated: Dec 31, 2012
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Sample QuestionA 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:
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Sample QuestionWhat are the possible genotypes of the children in this Punnett square?
Named after Reginald C. Punnett, the square has been used to predict genotypes one gets from a breeding experiment. A genotype is the genetic makeup of the organism, and creating a Punnett square requires knowledge of the genetic...
Questions: 12 | Attempts: 277 | Last updated: Apr 15, 2020
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Sample QuestionA 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:
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