The major source of diversity for B and T cell receptors is
a. mitosis.
b. meiosis.
c. transcript processing.
d. random recombination of gene segments.
e. mutation.
D
Biology & Microbiology
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Which of the following molecules would not easily diffuse across a plasma membrane?
A. small polar molecules B. large polar molecules C. gases D. both small and large polar molecules
Biology & Microbiology
Bacterial DNA is not compacted into an organized higher structure
a. True b. False
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Yeasts reproduce asexually by:
a. meiosis. b. budding. c. ascospores. d. binary fission. e. forming a secondary mycelium.
Biology & Microbiology
Select the most appropriate choice for each person.
A. Lyell B. Cuvier C. Lamarck D. Darwin E. Malthus F. Aristotle
Biology & Microbiology