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- 1. Multiple Choice
In a Punnett square, a lower case letter stands for a ____________ allele.
dominant
recessive
homozygous
heterozygous
- 2. Multiple Choice
Hair color, height, eye color and freckles are examples of human traits. What do we call the physical expression of the genetic material of an organism?
genetics
heredity
genotype
phenotype
- 3. Multiple Choice
In animals, shaggy fur is dominant to short fur. The Punnett Square shows the genotypes of the offspring of a shaggy fur animal and a short fur animal. What were the genotypes of the parents?
FF and FF
Ff and ff
ff and ff
Ff and Ff
- 4. Multiple Choice
In animals, shaggy fur is dominant to short fur. According to the genotypes shown, what percent of offspring will have short fur?
0
25
50
75
100
- 5. Multiple ChoiceIn a punnet square where are the parent alleles written?Top and inside the boxesOnly on the left and right side of the boxes.outside of the boxes (top and left side)All on the top side of the boxes
- 6. Multiple Choice
Heterozygous is when...
the alleles are the same.
the alleles are different.
the alleles are absent.
the alleles are present.
- 7. Multiple Choice
T = tall and t = short
In the punnett square shown, what belongs in the missing square
tt
Tt
Bb
TT
- 8. Multiple Choice
In a heterozygous genotype, the ___________ allele takes over in the phenotype.
recessive
dominant
- 9. Multiple ChoiceWhich of the following alleles is homozygous (purebred) recessive?TtttTTt
- 10. Multiple ChoiceG = green, g = yellow
The genotype for a yellow plant is...GGGgggall of the choices result in yellow - 11. Multiple Choice
In plants, tall (T) is dominant to short (t). Perform the following cross: Tt x Tt. What is the probability of producing a short plant?
0%
25%
50%
75%
- 12. Multiple Choice
The genotypes AA and Aa always show up as the __________ phenotype.
dominant
recessive
- 13. Multiple ChoiceWhat ratio of the offspring from the cross shown will be homozygous recessive for the trait of tallness?0 in 41 in 42 in 44 in 4
- 14. Multiple Choice
Which of the following genotypes is homozygous dominant?
A
Aa
AA
aa
- 15. Multiple Choice
Which of the following genotypes is heterozygous?
Bb
BB
bb
B
- 16. Multiple Choice
A recessive allele is represented by a ______ letter.
lower-case
capital
- 17. Multiple Choice
A dominant allele is represented by a ______ letter.
lower-case
capital
- 18. Multiple Choice
Blue-eyed is a ______.
genotype
phenotype
- 19. Multiple Choice
Bb is a ______.
genotype
phenotype
- 20. Multiple Choice
If a black guinea pig (BB) and a white guinea pig (bb) mate, there is a ______ chance that a white guinea pig will be born.
0%
25%
50%
75%
100%
- Answer choicesTagsAnswer choicesTags