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BIO Practice Final Exam
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BIO Practice Final Exam BIO Practice Final Exam BIO Practice Final Exam
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BIO Practice Final Examcytoskeleton - ANS These are responsible for cell shape, internal organization, and movements.
microtubules - ANS They have been dubbed as "conveyor belts'; they move vesicles, organelles and
chromosomes.
Menstrual flow results in the discharge of? - ANS endometrial lining
Which of the following is an antigen presenting cell? - ANS dendritic cell and macrophage
Put the following developmental processes in the correct order.
gastrulation > organogenesis > cleavage - ANS cleavage > gastrulation > organogenesis
Which of the following is the first to be produced in response to an infection?
IgE
IgA
Rh
IgG
IgM - ANS IgM
Susan, a mother with type B blood, has a child with type O blood. She claims that Craig, who has
type A blood, is the father. He claims that he cannot possibly be the father. Further blood tests
ordered by the judge reveal that Craig is AA. The judge rules that ________.
it is impossible to reach a decision based on the limited data available.
none of these
Susan cannot be the real mother of the child; there must have been an error made at the hospital.
,Susan is right and Craig must pay child support.
Craig is right and doesn't have to pay child support. - ANS Craig is right and doesnt have to pay child
support
If purple is dominant in pea plants, a cross between P generation purple and white plants will result
in? - ANS All purple flowers
Translation ends when a stop codon is at the ____ site, allowing a ____ to bind there - ANS A;
Release Factor
In order to ensure the precision of the excision of introns, the junction between introns and exons
are bound by ________
snRNPs
ribozymes
single stranded RNA binding proteins
all of these
RNA polymerase - ANS snRNPs
Sperm become fully motile in the __________.
seminal fluid.
epididymis.
ductus deferens.
vagina.
seminiferous tubules. - ANS epididymis
During human development, which of the following gives rise to the embryo? - ANS inner cell mass
Arrange the following three lines of defense from earliest to latest.
1 = Adaptive immune system
, 2 = Physical barriers
3 = Innate immune system - ANS 2,3,1
Autoimmune diseases result from a breakdown in the ability of the body to - ANS distinguish self
from non-self.
The development of an HIV vaccine has been very difficult because?
the viral antigens are hidden by the capsid.
the virus is a DNA virus, and vaccines only work against RNA viruses.
the virus produces enzymes that destroy the vaccine.
the viral coat antigens change frequently as the virus replicates.
the virus has no antigens to target. - ANS the viral coat antigens change frequently as the virus
replicates
All of the following is true regarding replication EXCEPT that __________?
it requires three different types of RNA molecules for initiation
it involves both strands of DNA as templates.
it results in a double-stranded end product.
extension of the new strand grows in the 5' to 3' direction
it uses the enzyme DNA polymerase. - ANS it requires three different types of RNA molecules for
initiation
Which of the following best describes unsaturated tails of lipids? They __________
are hydrophilic.
are unstable and tend to break apart.
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