BIOL 133 Week 7 Quiz 3 | Assignment Help | APUS
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- 21 Feb 2020
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BIOL 133 Week 7 Quiz 3 | Assignment Help | APUS
Question 1 of 10
Low pitched male voices (RR) and a high pitched male
voice (rr). Heterozygotes have a baritone voice. This is an example of
_________.
o
incomplete dominance
o
codominance
o
Mendelian genetics (dominance and
recessive
o
multiple alleles
Question 2 of 10
Sickle cell anemia is a recessive trait. A cross
between two heterozygotes would produce what phenotypic ratio?
o
1:2:1
o
3:1
o
2:2
o
1:3
o
4:0
Question 3 of 10
If genes are completely linked, all the offspring
will be _________.
o
recessive
o
recombinants
o
dominant
o
parental
o
hybrids
Question 4 of 10
In a monohybrid cross from heterozygous parents, of
the offspring would be what genotypes? Select all that apply.
o
Homozygous recessive
o
Homozygous dominant
o
Heterozygotes
o
Homozygous recessives
o
Homozygous dominants
o
Heterozygote
Question 5 of 10
If a cross for widow’s peak was conducted between a
homozygous dominant and a heterozygote, it is expected that all organisms of
the offspring will have widow’s peak. Even though all have the widow’s peak,
they can _________.
o
have the exact same alleles
o
be phenotypically different
o
have more than one allele from a parent
for the trait
o
be genotypic ally different
Question 6 of 10
What statement describes X-linked traits? Select all
that apply.
o
Women can be carriers because they can
be heterozygous for the trait
o
X-linked traits are more common in men
o
Males are never carriers since they only
receive one X chromosome
o
Males inherit X-linked traits from their
fathers
o
Women only have to have one affected
gene to show the trait
Question 7 of 10
The allele for widows peak (H) is dominant for the
allele for no widows peak (h). At a different gene locus, the allele for
hitchhikers thumb (D) is dominant to the allele for non-hitchhikers thumb (d).
A man is heterozygote for the traits and marries a woman who has no widows peak
and is heterozygote for hitchhikers thumb. What is the man’s genotype?
o
HHDD
o
HhDd
o
HHdd
o
hhDD
o
hhdd
Question 8 of 10
Marfan syndrome is a dominant trait. A cross between
a homozygous dominant and a heterozygote would produce what phenotypic ratio?
o
1:2:1
o
3:1
o
2:2
o
1:3
o
4:0
Question 9 of 10
A and Z are independent events. The probability that
A occurs is ¼. The probability that Z occurs is ¼. What is the probability that
both will occur?
o
1/4
o
1/8
o
1/3
o
1/2
o
1/16
Question 10 of 10
Determine what statements describe Huntington’s
disease? Select all that apply.
o
The disease is caused by a delayed
action gene
o
The diseases is autosomal dominant
o
The disease is sex-linked so it is
mostly seen in men
o
Offspring have a 50% chance of
inheriting the gene
o
t is recessive lethal
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