Medical Quiz

ADVBIO Genetics Quiz


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Normal humans have 46 chromosomes in their somatic cells. How many chromosomes do the gametes have?

A. 46

B. 23

C. 12

D. 92


What percentage of the offspring will have recessive homozygous genotypes?

A. 0%

B. 25%

C. 50%

D. 100%


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%


If their offspring is pink, and the parents are red and white, which pattern of inheritance does this represent?

A. sex-linked inheritance

B. simple dominance

C. co-dominance

D. incomplete dominance


What percentage will have homozygous dominant genotypes?

A. 0%

B. 25%

C. 75%

D. 100%


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


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


What percentage will have heterozygous genotypes?

A. 0%

B. 25%

C. 50%

D. 100%


A homozygous individual would have a genotype of

A. gray

B. RW

C. AA

D. Aa


organism heterozygous for a specific trait

A. recessive

B. purebred

C. hybrid

D. dominant


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


parent 1: GgBB

Find the gametes for parent 1 for a dihybrid cross.
_
A. GB, GB, gB, gB

B. gB, gb, gB, gb

C. Gg, BB, GB, GB

D. gg, Bb, gB, gb


B = brown eyes

b = blue eyes

One brother has genotype BB and the other brother has genotype Bb.

Which statement is true about these two brothers?

A. They have same phenotype and genotype

B. They have different phenotypes and genotypes

C. They have same phenotype, but different genotypes

D. They have different phenotypes, but the same genotype


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


organism homozygous for a specific trait

A. recessive

B. purebred

C. hybrid

D. dominant


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


Which factor can affect the epigenome?

A. nutrition

B. exercise

C. stress

D. all of these factors can affect the epigenome


If there is a cross of a red and white chicken, and the trait is co-dominant, what will be the result?

A. a pink chicken

B. a red and white chicken

C. a red chicken

D. a white chicken


Dominant alleles are represented by a:

A. Male gene

B. lowercase letter

C. recessive trait

D. capital letter


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


How many daughter cells are produced from meiosis ?

A. 10

B. 6

C. 4

D. 2


Two alleles are different

A. homozygous

B. heterozygous

C. co-dominant

D. dihybrid


A dihybrid cross involves how many traits?

A. 1

B. 2

C. 3

D. 4


What percentage will be tall offspring if B=tall and b=short?

A. 0%

B. 25%

C. 50%

D. 100%




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