Instability of radioisotopes is caused by

a. sudden temperature variations.
b. environmental humidity.
c. the random motion of atoms.
d. the disintegration of a neutron into a proton
and an electron.
e. the motion of electrons and neutrons.


D

Biology & Microbiology

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Variability in offspring is largely a result of ____

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Using the information presented in the figure above, where nuclear DNA was digested with MstII,

subjected to gel electrophoresis, and probed in a Southern blot with the indicated probe, which lane had a DNA sample from a palm tree?

a. 1 b. 2 c. 3 d. 4 e. 5

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The scientific name for the ruffed grouse is Bonasa umbellus. Bonasa is

a. the family name. b. the genus. c. the specific epithet. d. all of the above.

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The spinal cord runs through the vertebral column and connects with the brain through the

__________. Fill in the blank(s) with the appropriate word(s).

Biology & Microbiology