Ionizing radiation can produce which of the following?
A. hypoxanthine
B. cytosine
C. stop codons
D. thymine dimers
E. free radicals
Answer: E
Biology & Microbiology
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Among the bryophytes, which of the following contain distinct stemlike axis, small leaves, and rootlike rhizoids?
A. liverworts B. hornworts C. mosses D. algae E. cycads
Biology & Microbiology
Liverworts are the most primitive group of non-vascular plants.
a. Conifers b. Ginkophytes c. Cycads d. Gnetophytes
Biology & Microbiology
In a polar covalent bond, the atoms of the different elements do not share electrons equally because
a. one is a metal and one is a non-metal. b. both are metals. c. both are non-metals. d. one element has more neutrons. e. one element has more protons.
Biology & Microbiology
All of the following are effects of histamine EXCEPT
A) vasodilation. B) fever. C) swelling. D) redness. E) pain.
Biology & Microbiology