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- 1. Multiple Choice
Different version of genes are called what?
Traits
Alleles
Genotype
Phenotype
- 2. Multiple Choice
Distinguishing characteristics that are inherited
alleles
traits
genes
heredity
- 3. Multiple Choice
When two alleles are the same (ex:RR/rr) what is this known as?
Homozygous
Heterozygous
- 4. Multiple Choice
What is the different between dominant alleles and recessive alleles?
Dominant- only will show up when there are two dominant alleles
Recessive- only show up when there are two recessive alleles
Dominant- will always show up no matter what.
Recessive- will always show up no matter what.
- 5. Multiple Choice
A pea plant with wrinkled peas is crossed with a pea plant with smooth peas. All of the offspring produced have wrinkled peas. What can be inferred about the wrinkled pea trait?
The wrinkled pea plant is dominant
The wrinkled pea plant is recessive
The wrinkled pea plant is a hybrid
The wrinkled pea plant is codominant.
- 6. Multiple Choice
A mother is homozygous recessive for blue eyes, while the father is heterozygous for brown eyes. What percentage of the children will have brown eyes? How many possible phenotypes and genotypes will there be?
25%, 2, 1
50%, 1, 2
50%, 2, 2
25%, 1, 2,
- 7. Multiple Choice
A woman is pregnant and does not know the gender of the baby yet. What is the percentage of it being a boy.
25%
50%
- 8. Multiple Choice
What is the difference between phenotype and genotype?
Genotype is the physical characteristics, while phenotype is the combinations of alleles
They are interchangeable.
Genotype is the combination of alleles while phenotype is the physical characteristics.
- 9. Multiple Choice
Orange fur (R) is dominant over white fur (r) in rabbits. Fifty percent of the rabbits in the most recent litter have orange rabbits. What are the possible genotypes of the parents of this litter?
RR: rr
Rr: Rr
Rr: rr
Rr: RR
- 10. Multiple Choice
Astigmatism (represented by the letter A) is a common and generally treatable imperfection in the curvature of the eye that causes blurred distance and near vision. A man is heterozygous for astigmatism and the female is heterozygous for astigmatism. What is the percentage of offspring that will NOT have astigmatism
75%
25%
100%
50%
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