ADVBIO Genetics Quiz
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What percentage will be tall offspring if B=tall and b=short?
A. 0%
B. 25%
C. 50%
D. 100%
Which describes why the twins shown are not exactly alike?
A. Mutations occured to change traits
B. Epigenetic changes were caused by environmental factors
C. The twins have different DNA
D. The twins are identical.
What percentage will have heterozygous genotypes?
A. 0%
B. 25%
C. 50%
D. 100%
In pea plants, the tall allele is dominant to the short allele. What key would demonstrate this?
a. Tall = T
Short = S
b. Tall = T
Short = t
c. Tall = t
Short = T
d. Tall = TT
Short = tt
Two alleles are the same
A. homozygous
B. heterozygous
C. co-dominant
D. dihybrid
What you see, or the physical appearance.
A. Genotype
B. Phenotype
C. Homozygous
D. Heterozygous
A complex inheritance pattern that occurs when neither allele is dominant and both alleles are expressed
A. simple dominance
B. sex-linked trait
C. co-dominance
D. incomplete dominance
Colorblindness is a sex-linked recessive disorder. If the daughter of a couple is colorblind, what are the two possible genotypes of her mother?
a. XAXA and XAXa
b. XAXA and XaXa
c. XAXa and XaXa
d. Cannot be determined
A homozygous individual would have a genotype of
A. gray
B. RW
C. AA
D. Aa
organism homozygous for a specific trait
A. recessive
B. purebred
C. hybrid
D. dominant
This is a pedigree that follows blue eyes which is a recessive trait. What are the genotypes of II-1 and II-2?
A. Aa, AA
B. aa, aa
C. AA, AA
D. Aa, Aa
Which is the correct phenotypic % for the following Punnett square if T=tall and t=short
A. 100% tall
B. 100% short
C. 50% tall, 50% short
D. 75% tall, 25% short
Complex inheritance pattern that occurs when neither allele is dominant and both alleles are expressed
A. simple dominance
B. sex-linked trait
C. co-dominance
D. incomplete dominance
KEY:
Type A= AA or AO
Type B = BB or BO
Type AB = AB
Type O = OO
If a father is AA and a mother is AB, what is the probability for a child with AB blood?
A. 0%
B. 25%
C. 50%
D. 75%
Different forms of a gene are called
A. alleles
B. traits
C. genotypes
D. chromosomes
What percentage of the offspring will have recessive homozygous genotypes?
A. 0%
B. 25%
C. 50%
D. 100%
This is a pedigree that follows blue eyes which is a recessive trait. What is the genotype of the father in generation 1?
A. Aa
B. AA
C. aa
D. A?- cannot determine
A white mouse with red eyes is crossed with a black mouse with brown eyes. The white mouse is recessive for both of its traits. The black mouse is dominant for both of its traits.
This cross would be
_
A. BBEE x bbee
B. BBEe x BbEe
C. BbEE x BbEe
D. BBee x BBEE
KEY:
Type A= AA or AO
Type B = BB or BO
Type AB = AB
Type O = OO
If two parents have type AB blood, what is the probability that their child will have type O blood?
A. 0%
B. 25%
C. 50%
D. 100%
How many daughter cells are produced from meiosis ?
A. 10
B. 6
C. 4
D. 2
A heterozygous individual would have a genotype of
A. AA
B. Aa
C. XhXh
D. AABB
What percentage will have homozygous dominant genotypes?
A. 0%
B. 25%
C. 75%
D. 100%
Normal humans have 46 chromosomes in their somatic cells. How many chromosomes do the gametes have?
A. 46
B. 23
C. 12
D. 92
organism heterozygous for a specific trait
A. recessive
B. purebred
C. hybrid
D. dominant
Two alleles are different
A. homozygous
B. heterozygous
C. co-dominant
D. dihybrid
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