Genetics Quiz
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True or False: Self pollination is when a male plant and a female plant cross pollinate
A. TRUE
B. FALSE
Which one of the following shows discontinuous variation?
A. Eye colour
B. Height
C. Strength
D. Weight
When you cross two parents, each parent is responsible for passing _______ of their two alleles for each individual trait.
A. 1
B. 2
C. 3
D. 4
A mutation is
A. any change that is harmful
B. any change in a gene or chromosome
C. any change that is helpful
D. any change in the phenotype
What is the probability that the couple will have a child that can roll their tongue?
A. 25%
B. 50%
C. 75%
D. 100%
What is the dominant trait?
A. yellow pea seeds
B. green pea seeds
C. there is no dominant seed
D. Jolly green giant
If something is heterozygous, it is also _____
A. purebred
B. hybrid
C. dominant
D. recessive
(Grey fur (G) is dominant over white fur (g) and Black eyes (B) are dominant over red eyes(b))
A male rabbit GGbb crossed with a female rabbit with ggBb.
How many out of 16, have grey fur and red eyes?
A. 4
B. 8
C. 12
D. 16
Which term is used to describe a natural change in the sequence of an organism’s DNA?
A. Adaptation
B. Alteration
C. Modification
D. Mutation
Two plants are crossed, resulting in offspring with a 3:1 ratio for a particular trait. What does this suggest?
A. that the parents were true-breeding for contrasting traits
B. that the trait shows incomplete dominance
C. that a blending of traits has occurred
D. that the parents were both heterozygous for a single trait
Why did the F1 offspring of Mendel’s classic pea cross always look like one of the two parental varieties?
A. No genes interacted to produce the parental phenotype.
B. Each allele affected phenotypic expression.
C. The traits blended together during fertilization
D. One phenotype was completely dominant over another.
A dog gives birth to 5 puppies. What percentage of the chromosomes does each puppy share with the mother?
A. 25%
B. 50%
C. 75%
D. 100%
An alternate form of a gene for a specific trait or gene product
A. genotype
B. allele
C. gene
D. phenotype
Which term describes the different forms of a gene
A. Chromosome
B. Allele
C. DNA
D. Punnett Squares
Having two different genes for a trait is called
A. homozygous
B. heterozygous
C. protein
D. genotype
What is the first phase of Mitosis?
A. Prophase
B. Anaphase
C. Metaphase
D. Telophase
What is the genotype of the mother?
A. BB
B. bb
C. Bb
D. BB or Bb
(Grey fur (G) is dominant over white fur (g) and Black eyes (B) are dominant over red eyes(b))
A male rabbit GGbb crossed with a female rabbit with ggBb.
How many out of 16, have grey fur and black eyes?
A. 4
B. 8
C. 12
D. 16
Which condition is expressed by the Punnett Square?
A. Codominance
B. Heterozygous Dominance
C. Homozygous Dominance
D. Incomplete Dominance
Hydrangea plants of the same genotype are planted in a large flower garden. Some of the plants produce blue flowers and others pink flowers. This can be best explained by which of the following?
A. the knowledge that multiple alleles are involved
B. the allele for blue hydrangea being completely dominant
C. the alleles being codominant
D. environmental factors such as soil pH
Which of the following is a phenotype?
A. Aa
B. red hair
C. heterozygous
D. DNA
What type of heredity is shown in the pedigree?
A. Sex-Linked Dominant
B. Sex-Linked Recessive
C. Autosomal Dominant
D. Autosomal Recessive
A phenotype is
A. Dominance
B. Physical appearance
C. Recessiveness
D. Letter Combinations
If most human offspring receive 23 chromosomes from the mother, how many chromosomes do they receive from the father?
a. 20
b. 78
c. 46
d. 23
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
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