Medical Quiz

Meiosis and intro to Genetics Quiz


Which of the following is NOT a genotype?
A. heterozygous
B. a trait
C. Bb
D. homozygous recessive

Heterozygous is when…
A. the alleles are the same
B. the alleles are different
C. the alleles are absent
D. the alleles are present

What specifically about Pea Plants did Mendel Study?

A. Color of Pea Flower

B. Colors of individual Peas

C. Texture of Peas

D. All of these

Which of the following alleles is homozygous (purebred) recessive?
A. Tt
B. tt
D. t

A human being has a somatic cell that has 46 chromosomes.  What is the haploid number found in a gamete?
A. 23
B. 46
C. 69
D. 92

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. XAXAand XaXa
c. XAXaand XaXa
d. Cannot be determined

What did Mendel call the two kinds of traits exhibited by the pea plants (one coming from the father, one from the mother)?
A. Genesis
B. Elective traits
C. Alleles
D. Quadrants

Crossing over helps promote 
A. male genotype
B. genetic variation
C. DNA replication
D. mitosis

which choice best represents the genotype of this cross?
A. 1 Yy: 2 yy: 0 YY
B. 2 Yy: 2 yy: 0 YY
C. 3 Yy: 1 yy: 0 YY
D. 1 Yy: 3 yy: 0 YY

What do we call the table used to calculate the probability of an offspring’s genotype?
A. Punnett square
B. Venn diagram
C. Golden ratio
D. Fibonacci sequence

Compared to the number of chromosomes contained in a body cell, how many chromosomes would normally be contained in a gamete?
A. The same number
B. One-fourth as many
C. Twice as many
D. Half as many

What allele combination should go in the missing box?
B. Aa
C. aa
D. none of these

When we say that a woman is a carrier for a genetic disease or disorder it means that
A. she has 1 gene, but not the disorder
B. she has 2 genes for the disorder
C. she can pass the gene only to male children
D. she can pass the gene only to female children

The chromosomes that pair up during meiosis, are called __________ chromosomes.  
A. homozygous 
B. asexual
C. homologous
D. genes

What percentage of the female offspring will be a carrier for this recessive disease?
A. 0%
B. 50%
C. 100%
D. 25%

Two brown eyed parents (Bb) have a baby. What is the chance the baby is blue eyed?
A. 0%
B. 25%
C. 50%
D. 75%

This type of phenotype is less likely to be prominent in offspring
A. Dominant genotype
B. Recessive genotype
C. Dominant phenotype
D. Recessive phenotype

What is the probability of heterozygous offspring?
A. 25%
B. 50%
C. 0%
D. 100%

What is the phenotype of the offspring? (A-Brown hair; a-blond hair)
A. 50 % Brown Hair and 50% Blond Hair
B. 25 % Brown Hair and 75% Blond Hair
C. 75 % Brown Hair and 25% Blond Hair
D. 0% Brown Hair and 100% Blond Hair

What kind of genotype has 2 recessive alleles

A. homozygous dominant

B. heterozygous

C. homozygous recessive

D. heterozygous recessive

Hemophilia is a recessive x-linked disorder.
Which genotype represents afemale who is a carrier for hemophilia?

a. XHXh
b. XhXh
d. XhY

Females have ____ and males have _____ chromosomes.

Which of the following genotypes belongs in the red box in the Punnett square?

a. XBXb
b. XbXb
c. XbY
d. XBY

What is it called when a sperm and egg meet?
A. meiosis
B. fertilization
C. cell division
D. mitosis

Which of the following genotypes is homozygous dominant?
A. A
B. Aa
D. aa


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