1) in familial hypercholesterolemia, individuals with two abnormal alleles die of heart
attacks in childhood, those with only one abnormal allele typically die as young adults,
and those with two normal alleles have normal life expectancies. this exemplifies
__________.
a. penetrance
b. codominance
c. pleiotropy
d. complete dominance
e. incomplete dominance
2) transcription occurs in the __________, but most translation occurs in the
__________.
a. nucleus; cytoplasm
b. nucleus; nucleolus
c. cytoplasm; nucleus
d. nucleolus; cytoplasm
e. nucleolus; rough endoplasmic reticulum
3) a skateboarder falls and lands directly on his buttocks and lower back. he does not
feel much pain and continues skating. after a couple of days he begins experiencing
right hip pain and notices his right foot and leg are rotated to the right. a doctor
diagnoses a muscle spasm. which of the following muscles is most likely causing the
leg and foot rotation?
a.quadratus lumborum
b.tibialis posterior
c.piriformis
d.adductor longus
e.sacrospinalis
4) metabolism is the sum of __________ and __________.
a. inhalation; exhalation
b. growth; differentiation
c. anabolism; catabolism
d. positive; negative feedback
e. responsiveness; movement
5) most preganglionic fibers in the sympathetic nervous system synapse with
__________.
a. no neurons
b. somatic neurons
c. parasympathetic neurons
d. 10-20 postganglionic neurons
e. effectors directly
6) which of the following is most likely to cause anemia?
a. high altitude
b. air pollution other than by carbon monoxide
c. renal disease
d. smoking
e. any factor that creates a state of hypoxemia
7) which uterine layer is composed of a simple columnar epithelium containing tubular
glands?
a. fimbrium
b. myometrium
c. endometrium
d. cervix
e. perimetrium
8) the heart is located in the space called the __________.
a. pericardial cavity
b. mediastinum
c. abdominal cavity
d. pleural cavity
e. myocardium
9) most preganglionic fibers synapse with postganglionic fibers in the dorsal root
ganglia.
10) what property of neurons allows them to respond to changes in the environment?
a. excitablity
b. conductivity
c. secretion
d. permeability
11) a chemical reaction that removes electrons from an atom is called a(n)__________
reaction.
a.reduction
b.condensation
c.hydrolysis
d.anabolic
e.oxidation
12) the absence of iodine in the diet leads to __________.
a. hypoparathyroidism
b. hypothyroidism
c. hypocalcemia
d. hypoglycemia
e. hypoxemia
13) in the following reaction, what is(are) the product(s)? co2 + h2o —> h2co3
a. h2co3
b. co2 and h2o
c. co2 and h2co3
d. h2o and h2co3
14) the most movable joints are ___________ joints.
a. symphysis
b. synovial
c. syndesmosis
d. gomphosis
e. synchondrosis
15) which hormone stimulates glucocorticoid secretion?
a. ghrh
b. ghih
c. acth
d. crh
e. tsh
16) which of the following is an androgen?
a. estrogen
b. progesterone
c. testosterone
d. luteinizing hormone (lh)
e. follicle-stimulating hormone (fsh)
17) which of the following statementsis nota tenet ofmodern cell theory?
a. an organism’s structure and all of its functions are ultimately due to the activities of
its cells.
b. all cells come only from preexisting cells.
c. all cells occupy space.
d. all organisms are composed of cells and cell products.
e. the cell is the basic structural and functional unit of life.
18) if the potassium leak channels were suddenly blocked in a resting neuron, what
would happen to its resting membrane potential?
a. it would become more positive.
b. it would become more negative.
c. the rmp would be unaffected.
d. it would hyperpolarize.
19) which of these cannot cause a mutation?
a. radiation
b. a virus
c. a chemical
d. a mistake made by the dna polymerase
e. a mistake made by the rna polymerase