Gamma rays cause biological damage in living systems by
A.
producing reactive molecules such as superoxide and hydroxyl-free radicals.
B. causing tiny gravity sinks and black holes to be formed in the substance.
C. introducing toxins.
D. making the substance radioactive.
A
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What experiment led to an understanding by Kornberg that DNA acted as a template for DNA synthesis?
What will be an ideal response?
Damage to which of the following would prevent the production of the most hormones?
1.hypothalamus
2.thyroid gland
3.pancreas
4.adrenal glands
he specific order of amino acids in a protein is determined by the order of ____________ in a segment of DNA called a ________
What will be an ideal response?
The assisted transport of a molecule across the cell membrane without an expenditure of energy is known as what?
A. osmosis B. diffusion C. crenation D. facilitated transport E. active transport