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- 1. Multiple Choice
What are the possible genotypes for this cross?TT = 25% Tt= 50% tt=25%all tallTT= 75% tt = 25%Tt = 100% - 2. Multiple ChoiceWhich of the following genotypes is homozygous dominant?AAaAAaa
- 3. Multiple ChoiceIf brown eyes are dominant over blue eyes, what would be the parent genotypes if two heterozygous brown eyed persons were crossed?BB and bbBB and BbBb and Bbbb and Bb
- 4. Multiple ChoiceA green pea plant (Gg) is crossed with a yellow pea plant (gg). Describe the genotype of the offspring. (Be sure to remember that the capital letter is dominant).50% heterozygous and 25% homozygous recessive50% heterozygous and 50% homozygous recessive100% homozygous recessive25% heterozygous and 50% homozygous
- 5. Multiple ChoiceA white flower (rr) is crossed with a white flower (rr). What is the genotype of the offspring? Draw a Punnett square and answer the question.100% homozygous dominant100% heterozygous dominant100% homozygous recessive100% heterozygous recessive
- 6. Multiple ChoiceWhich of the following is homozygous recessive?rrAATTFf
- 7. Multiple ChoiceWhich of the following is homozygous dominant?JjRrMMee
- 8. Multiple Choice
The physical appearance of a trait is known as the-
genotype
phenotype
Homozygous
intelligence
- 9. Multiple Choice
Gretford is heterozygous for his head shape. If (R) is for a Round head, and (r) is for an Egg head, what is Gretford's genotype?
RR
Rr
rr
rR
- 10. Multiple Choice
What is the probability of heterozygous offspring?
25%
50%
0%
100%
- 11. Multiple Choice
In plants, tall (T) is dominant to short (t).
Draw a punnett square and perform the following cross: Tt x Tt
What is the probability of producing a short plant?
0%
25%
50%
75%
- 12. Multiple ChoiceWhat allele combination should go in the missing box?AAAaaanone of these
- 13. Multiple Choice
What genotype would go in box 2? And is it Homozygous or Heterozygous?
BB Heterozygous
Bb Heterozygous
bb Homozygous
Bb Homozygous
- 14. Multiple Choice
Kyree is heterozygous. If (W) is for waves, and (w) if for no waves.
What is Kyree’s genotype & phenotype?
WW : waves
ww : waves
Ww : no waves
Ww : Waves
- 15. Multiple ChoiceWhich of the following alleles is homozygous (purebred) recessive?TtttTTt
- 16. Multiple Choice
Brown eye color is dominant to blue eyes. Two brown eyed parents (Bb) have a baby. What is the chance the baby is blue eyed?
0 %
25%
50%
75%
- 17. Multiple ChoiceAa, DD, bB, yy are all examples ofgenotypesphenotypes
- 18. Multiple Choice
Which of the following are GENOTYPES? (select all correct answers)
black hair
homozygous dominant
heterozygous
blue eyes
BB
- 19. Multiple Choice
What is a GENOTYPE?
the genetic make-up of an organism
the physical trait of an organism
mitosis
meiosis
- 20. Multiple Choice
PHENOTYPE is
the genetic make-up of an organism
the physical trait of an organism
nucleic acid
Aa
- 21. Multiple Choice
Which of the following are PHENOTYPES?
green skin
Aa
homozygous recessive
purple eyes
black fur
- 22. Multiple Choice
The two types of alleles are (select two)
dominant
doughnut
expressive
recessive
- 23. Multiple ChoiceWhich of the following is homozygous recessive?rrAATTFf
- 24. Multiple ChoiceHow many letters does a genotype contain?1234
- 25. Multiple ChoiceMark is heterozygous. If B is for brown hair, and b is for blonde hair, what is Mark's phenotype?Brown HairBlonde HairBrown and Blonde HairBlack Hair
- 26. Multiple ChoiceMark is heterozygous. If B is for brown hair, and b is for blonde hair, what is Mark's genotype?BBbbBbbB
- 27. Multiple ChoiceWhat you see, or the physical appearance.GenotypePhenotypeHomozygousHeterozygous
- 28. Multiple ChoiceHow much of your DNA do you inherit from your mom?10%25%50%it varies
- 29. Multiple Choice
A segment of DNA that codes for a trait
gene
centromere
chromosome
chromatid
- 30. Multiple Choice
an observable characteristic
trait
personality
cell
DNA
- 31. Multiple Choice
Genetic traits are determined by one or more
genes
organelles
random chances
cells
- 32. Multiple Choice
A version or variation of a gene
trait
gene
allele
DNA
- 33. Multiple Choice
The alleles that an organism has/inherits are its
genotype
phenotype
chromosome
recessive
- 34. Multiple Choice
When an organism has two of the same alleles, it is called
homozygous
heterozygous
recessive
dominant
- 35. Multiple Choice
When an organism has two different alleles, it is called
homozygous
heterozygous
recessive
dominant
- 36. Multiple Choice
Long strands of DNA are wrapped into
DNA
Chromosome
Alleles
Phenotype
- 37. Multiple Choice
Humans have _______ pairs of chromosomes, for a total of _______ chromosomes.
10, 20
25, 100
23, 46
46, 92
- Answer choicesTagsAnswer choicesTags