Biology 251 - Genetics » Spring 2021 » Topic 4.2 Quiz
Need help with your exam preparation?
Get Answers to this exam for $6 USD.
Get Answers to all exams in [ Biology 251 - Genetics ] course for $25 USD.
Existing Quiz Clients Login here
Question #1
Dosage compensation for the X chromosome in mammals is obtained through condensation of one X chromosme into a _______.
A.
inactivated body.
B.
gametic body.
C.
Lyon body.
D.
nuclear body.
E.
Barr body.
Question #2
In cats, coat color with a calico phenotype is only seen in individuals that are:
A.
heterozygous females.
B.
homozygous females.
C.
hemizygous males.
D.
heterozygous males.
E.
homozygous males.
Question #3
Nondisjunction that results in gametes with an extra chromosome can lead to generation of a(n) __________ zygote.
A.
aneuploid
B.
diploid
C.
triploid
D.
haplodiploid
E.
euploid
Question #4
A human with 45 chromosomes due to presence of only a single X chromosome would present the phenotype of:
A.
a female with Turner's syndrome.
B.
a normal male.
C.
a normal female.
D.
a male with Klinefelter's syndrome.
E.
a PolyX female.
Question #5
In a mammalian karyotype with a sex chromosome complement of XXXY, _________ chromosome(s) would be randomly inactivated in each cell for dosage compensation.
A.
0
B.
3
C.
1
D.
2
E.
4
Need help with your exam preparation?
Get Answers to this exam for $6 USD.
Get Answers to all exams in [ Biology 251 - Genetics ] course for $25 USD.
Existing Quiz Clients Login here