Meiosis and intro to Genetics Quiz
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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
C. 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?
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?
A. AA
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?
Females have ____ and males have _____ chromosomes.
A. XX, XY
B. XY, XX
C. XX, XX
D. XY, XY
Which of the following genotypes belongs in the red box in the Punnett square?
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
C. AA
D. aa
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