Genetics In 7th Grade
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This quiz will test your genetics knowledge for our 7th grade science class.
- 1.What percent of offspring will be heterozygous if both parents are heterozygous?
- A.
0%
- B.
25%
- C.
50%
- D.
75%
- E.
100%
- 2.Which of these genotypes is an example of homozygous dominant?
- A.
Bb
- B.
Bb
- C.
BB
- 3.Which is the easiest way to try and determine which trait is dominant in a species?
- A.
See what trait is most common
- B.
Extract and map the DNA (chromosomes)
- C.
Breed 10 generations and see which traits show up the most
- 4.Which description is most accurate to describe how an albino axolotl can come from two wild-type axololts?
- A.
One parent is albino
- B.
Both parents have to be heterozygous
- C.
We can hope for a genetic mutation to occur
- D.
Both parents are homozygous dominant
- 5.Where is the genetic information stored in a cell?
- A.
Nuclues
- B.
Ribosomes
- C.
Cell membrane
- D.
Vacuole
- 6.What is the dominant phenotype for human eye color?
- A.
BB
- B.
Bb
- C.
Brown
- D.
Blue
- 7.Which of these genotypes are heterozygous?
- A.
Bb
- B.
BB
- C.
Bb
- D.
Brown
- E.
Blue
- 8.Imagaine you have offspring from a wild type axolotl and an albino axolotl. The offspring end up 100% wild type. What is the most likely genotype of the wild type axolotl?
- A.
Bb
- B.
BB
- C.
Bb
- 9.Imagine you have offspring from two albino axolotls. What is the only genotype that can occur?
- A.
Bb
- B.
Bb
- C.
BB
- D.
Albino
- E.
Wild type
- 10.Use a punnet square for you answer. What percent of offspring will be homozygous recessive if one parent is homozygous recessive and one parent is heterozygous.
- A.
0%
- B.
25%
- C.
50%
- D.
75%
- E.
100%
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