Which cell type is most often used in karyotyping?
a. bone
b. nerve
c. epithelial
d. blood
e. cartilage
ANSWER: d
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Sex differences in body growth are mediated by changes in growth hormone, insulin-like growth factor I and
A. thyroid hormone. B. estradiol and testosterone. C. prolactin. D. progesterone. E. cortisol.
The technique of transferring proteins from SDS-PAGE gels onto a membrane and using labeled antibodies to identify particular proteins is known as ________
Fill in the blank with correct word.
An example of a unicellular fungus is:
a. a mold. b. a mushroom. c. a yeast. d. a rust. e. a smut.
Which of the following structural characteristics is not normally observed in a DNA duplex?
(a) purine–pyrimidine pairs (b) external sugar–phosphate backbone (c) uniform left-handed twist (d) antiparallel strands