Page path
BIO201_MH_V3
Topic 4: Genetics
Started on Tuesday, September 7, 2021, 6:04 AM
State Finished
Completed on Tuesday, September 7,
... [Show More] 2021, 6:25 AM
Time taken 20 mins 35 secs
Grade 33.25 out of 35.00 (95%)
Question 1
Correct
1.75 points out of 1.75
Flag question
Question text
The presence of a cellular clock, presence of "death genes" and damage to DNA or
mitochondria are all theories of _____.
Select one:
a. aging
b. death
c. differentiation
d. cleavage
Question 2
Incorrect
0.00 points out of 1.75Flag question
Question text
Which of the following is an example of incomplete dominance?
Select one:
a. minor thalassemia
b. major thalassemia
c. beta thalassemia CORRECT
d. polymorphism
e. ABO blood groups
Question 3
Correct
1.75 points out of 1.75
Flag question
Question text
What term describes the inheritance of a trait which in the heterozygote has an intermediate
expression between either allele?
Select one:
a. Incomplete penetrance
b. Incomplete dominance
c. Complete dominance
d. Codominance
Question 4
Correct
1.75 points out of 1.75Flag question
Question text
When more than one gene pair is involved in an inheritance pattern, it is called
Select one:
a. structural gene.
b. autosome.
c. genotype.
d. polygenic.
e. y-linked.
Question 5
Correct
1.75 points out of 1.75
Flag question
Question text
The actual genetic constitution of an individual is its
Select one:
a. structural gene.
b. autosome.
c. genotype.
d. polygenic.
e. y-linked.
Question 6
Correct
1.75 points out of 1.75Flag question
Question text
A non-albino female who is a carrier for the albino allele (Aa), mates with an albino (aa)
male. What is the probability that their children will be albino?
Select one:
a. 0%
b. 25%
c. 50%
d. 75%
e. 100%
Question 7
Correct
1.75 points out of 1.75
Flag question
Question text
If an albino (aa) mates with a person homozygous for normal pigment (AA),
Select one:
a. half of the offspring are normal.
b. half of the offspring are albinos.
c. all offspring are homozygous normal.
d. all offspring are albinos.
e. All the offspring are normal but carriers.
Question 8
Correct
1.75 points out of 1.75Flag question
Question text
Chromosomes that are NOT associated with sex determination are known as
Select one:
a. structural genes.
b. autosomes.
c. genotypes.
d. polygenic.
e. y-linked.
Question 9
Correct
1.75 points out of 1.75
Flag question
Question text
The genotype WW is best described as
Select one:
a. homozygous recessive.
b. homozygous dominant.
c. heterozygous dominant.
d. heterozygous recessive.
e. homorecessive.
Question 10
Correct
1.75 points out of 1.75Flag question
Question text
A person's height, intelligence, eye color, and skin color are examples of
Select one:
a. incomplete dominance.
b. complete dominance.
c. complete recessiveness.
d. codominance.
e. polygenic traits.
Question 11
Correct
1.75 points out of 1.75
Flag question
Question text
Genes that are passed from male to male are called
Select one:
a. structural genes.
b. autosomes.
c. genotypes.
d. polygenic.
e. y-linked.
Question 12
Correct
1.75 points out of 1.75Flag question
Question text
A different form of an allele at a particular locus that can have no effect to major effects on
the phenotype is a(n)
Select one:
a. allelic variant.
b. mutated allele.
c. polymorphism.
d. All of the choices are correct.
Question 13
Correct
1.75 points out of 1.75
Flag question
Question text
What genetic disorder is caused by having three chromosomes 21?
Select one:
a. albinism
b. sickle-cell disease
c. hemophilia
d. Down syndrome
e. achondroplasia
Question 14
Correct
1.75 points out of 1.75Flag question
Question text
Which of the following chromosome anomalies can be found in either sex?
Select one:
a. Turner's Syndrome (XO)
b. Klinefelter's Syndrome (XXY)
c. Down Syndrome (Trisomy 21)
d. Barker's Syndrome
e. They all can be found in either sex.
Question 15
Correct
1.75 points out of 1.75
Flag question
Question text
A mistake during segregation of chromosomes is called
Select one:
a. deletion.
b. duplication.
c. nondisjunction.
d. point mutation.
e. aneuploidy
Question 16
Correct
1.75 points out of 1.75Flag question
Question text
A mutation involving a single nucleotide is a _____ mutation.
Select one:
a. deletion
b. duplication
c. nondisjunction
d. point
e. aneuploidy
Question 17
Correct
1.75 points out of 1.75
Flag question
Question text
What genetic disorder is the failure to produce clotting factors?
Select one:
a. albinism
b. sickle-cell disease
c. hemophilia
d. Down syndrome
e. achondroplasia
Question 18
Correct
1.75 points out of 1.75Flag question
Question text
What genetic disorder is the inability to produce normal hemoglobin?
Select one:
a. albinism
b. sickle-cell disease
c. hemophilia
d. Down syndrome
e. achondroplasia
Question 19
Correct
1.75 points out of 1.75
Flag question
Question text
Down Syndrome is an example of an aneuploidy called
Select one:
a. monosomy 21.
b. trisomy 21.
c. monosomy 23.
d. trisomy 17.
e. disomy 21.
Question 20
Correct
1.75 points out of 1.75Flag question
Question text
What genetic disorder is a type of dwarfism characterized by shortening of the upper and
lower limbs?
Select one:
a. albinism
b. sickle-cell disease
c. hemophilia
d. Down syndrome
e. achondroplasia [Show Less]