Genetics Quiz
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Organisms that have inherited two different forms of the same trait, one from each parent
A. purebred
B. hybrid
C. dominant trait
D. recessive trait
Genotype or Phenotype: Black hair
A. Phenotype
B. Genotype
True or False: Self pollination is when a male plant and a female plant cross pollinate
A. TRUE
B. FALSE
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 is the dependent variable of this experiment?
A. Plant Height
B. Seed Size
C. Seed Type
D. Week Number
What describes the goal of genetically engineering crops?
A. to make the product more expensive to purchase
B. to reduce the amount of genetic diversity
C. to develop new pathogens for humans
D. to increase yield and profit
What is one internal environmental condition that can influence a person’s height?
A. age
B. sunlight
C. nutrition
D. genotype
In humans, being born with extra fingers (polydactyly) is a dominant trait. If two parents without polydactyly have a child, what is the probability that their child will be born with extra fingers?
A. 0%
B. 25%
C. 50%
D. 100%
Short tails (T) are dominant to long tails (t). What is the probability of a long-tailed mouse in the cross Ttxtt?
A. 25%
B. 50%
C. 75%
D. 100%
The parents (Ff and Ff) shown in the Punnett square could have children with a phenotype ratio of
a. 3:1
b. 1:2:1
c. 4:0
d. 2:2
In peas, seed pods can be green (G) or yellow (g). The Punnett square shows a cross between a plant with green seed pods and a plant with yellow seed pods.
What will happen if two of the offspring plants are crossed?
_
A. All the plants will have green seed pods.
B. All the plants will have yellow seed pods.
C. 75% of the plants will have green seed pods, and 25% of the plants will have yellow seed pods.
D. 50% of the plants will have green seed pods, and 50% of the plants will have yellow seed pods.
To ensure scientific results are valid, what should you do during an experiment?
A. Conduct multiple trials.
B. Change hypothesis to fit result.
C. Have more then one independent variable.
D. Ignore results.
The hidden form of an inherited trait
A. dominant trait
B. recessive trait
C. purebred
D. hybrid
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
The more prevalent form of the gene, written as a capitol letter. Ex. A
A. genotype
B. phenotype
C. Dominant
D. Recessive
Researchers discovered four mutations in various cells in a patient’s body. Skin cells, egg cells, blood cells, and nerve cells were found mutated. Which one can be passed on to future generations?
A. Skin Cells
B. Egg Cells
C. Blood Cells
D. Nerve Cells
Which condition is expressed by the Punnett Square?
A. Codominance
B. Heterozygous Dominance
C. Homozygous Dominance
D. Incomplete Dominance
True or False: Mendel used pea plants because they grow quickly and have distinctly different colored flowers.
A. TRUE
B. FALSE
This phenotype is more likely to be prominent in offspring
A. Genotype
B. Dominant genotyp
C. Recessive Phenotype
D. monotypes
The exact genetic makeup of an organism, such as RR, Tt, PP is its?
A. phenotype
B. dominance
C. genotype
D. trait
The passing of inherited traits from parents to offspring
A. acquired traits
B. inherited traits
C. heredity
D. genetics
There are usually 46 chromosomes in a human
A. sperm cell.
B. egg cell.
C. DNA molecule.
D. body cell.
What are small stretches of DNA that code for traits
A. Nucleus
B. Chromosomes
C. Gene
D. Centromeres
The gene for black fur in guinea pigs is dominant over the gene for white fur. What is the percent chance of having an offspring with white fur in a cross between a black guinea pig and a white guinea pig (Bb x bb)?
A. 25%
B. 50%
C. 75%
D. 100%
What does it mean if a trait is dominant?
A. If the trait is present, then it is never expressed.
B. If the trait is absent, then it is never expressed.
C. If the trait is present, then it is always expressed.
D. If the trait is absent, then it is never expressed.
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