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Genetics Final 5/23/2019
By Christopher Grigg
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Last updated over 3 years ago
32 questions
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Offspring that are the result of sexual reproduction are:
never identical to the parents
sometimes identical to the parents
always identical to the parents
identical to other offspring
A trait can be determined by:
one gene
many genes
the environment
all of the above
Egg and sperm combine during:
asexual reproduction of plants
asexual reproduction of animals
sexual reproduction of plants and animals
reproduction of bacteria
Which of the following organisms reproduce sexually?
humans
plants
both a and b
none of the above
In the cells of most organisms, genetic information is contained in the:
cell wall
nucleus
organelle
cytoplasm
Scientists often use other organisms to study genetics. Fruit flies are sometimes chosen because:
they reproduce quickly
they cause disease
they do not have cells
they do not reproduce
Diseases that are inherited are
caused by genes
caused by viruses
caused by environmental factors
caused by stress
Which of the following is an example of asexual reproduction?
a fish releases sperm which unites with an egg of another fish
flowers from two different plants are mated to produce a seed
a gray cat is the offspring of a black cat and a white cat
a female turkey is able to produce offspring without a male.
Which of the following best describes how the human body is organized, from the
largest
to
smallest
structure?
DNA, chromosomes, cells
cells, chromosomes, DNA
cells, DNA, chromosomes
chromosomes, cells, DNA
The offspring of asexual reproduction is identical to the parent except in the case of:
a clone
a genetic mutation
fertilization
multicellular organisms
Which of the following statements is TRUE?
only single-celled organisms can reproduce sexually
only single-celled organisms can reproduce asexually
only multicellular organisms can reproduce asexually
none of the above
Process by which organisms make exact copies of themselves without the union of gametes (sperm and egg cells).
prototype
asexual reproduction
sexual reproduction
clone
A change in the DNA of a gene that can lead to a different trait.
regulation
prototype
range
mutation
An offspring produced by asexual reproduction, either naturally or through artificial processes.
gene
clone
regulation
prototype
An individual’s pair of alleles for a specific gene or group of genes that determine a trait.
heterozygous
homozygous
genotype
phenotype
An organism’s observable traits.
heterozygous
homozygous
genotype
phenotype
An organism that has two identical alleles for a specific trait. (example: AA)
heterozygous
homozygous
genotype
phenotype
An organism that has two different alleles for a specific trait.(Example: Aa)
homozygous
genotype
heterozygous
phenotype
A recessive genetic trait is represented by the letter “a.” Which of the following would most likely be used to represent the recessive condition?
AA
Aa
aa
none of the above
In the table shown above, the empty square should be filled in as:
RR
Rr
rr
RRrr
In the table shown above, among the offspring, what is the ratio of dominant to recessive for this trait?
3:1
1:3
2:2
1:2:3
In the table shown above, the dominant trait is represented by:
RR, Rr, and rr
RR and Rr
RR and rr
Rr and rr
In the table shown above, the probability of traits in offspring is a result of:
asexual reproduction
sexual reproduction
both a and b
none of the above
One of the first people to study patterns of heredity scientifically was:
Mary-Claire King
Robert Hooke
Antoine Marfan
Gregor Mendel
Look at the shaded inividuals. By studying the diagram, you can conclude that the trait is:
dominant
recessive
co-dominant
both dominant and recessive
Most human cells have ____ copies of each chromosome.
2
4
10
25
Which genotype is homozygous recessive
Bo
Bb
bb
BB
Which genotype is homozygous dominant
Bo
Bb
bb
BB
Which blood genotype is co-dominant?
Ao
Bo
AB
BB
Two parents are both carriers for a genetic trait that is based on only one gene. This means that their offspring:
cannot have the trait
will all be carriers for the trait
have a 25% chance of inheriting the trait
have a 50% chance of inheriting the trait
The trade-offs in choosing to be tested for a genetic disease include:
you might find out you have the disease
it may become difficult to get health insurance
both a and b
there are no trade-offs with this decision
The offspring of sexual reproduction:
receives half of its genetic material from each parent
receives all of its genetic material from one parent
receives genetic material from an outside source
develops genetic material independent of any other source
