The lethal effects of cell irradiation are measured by cell _____.
a) death
b) survival
c) damage
d) mutation
Ans: b) survival
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Which cell structure is present during plant cell division but not animal cell division?
a. cleavage furrow. b. cytokinesis. c. spindle. d. sister chromatids. e. cell plate.
Which pair of vitamins is produced within the human body?
a. A and C b. A and D c. C and D d. C and K e. D and K
Which of the following phenomena produces magnification?
A) the wavelength of a radiation source B) the refraction of radiation as it passes through a lens C) the thickness of a microscopic specimen D) the numerical aperture of a lens E) the length of an objective lens
The disease caused by B19 virus, a (papillomavirus/parvovirus/polyomavirus), is known as fifth disease and produces a distinctive rash.
Fill in the blank(s) with the appropriate word(s).