Which of the following types of proteins evolves at the slowest rate?
A) Peptide hormones
B) Collagen
C) Insulin
D) Histones
E) Lipoprotein
D
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Which of the following viruses is/are not transmitted sexually?
A) hantavirus B) herpes simplex viruses C) human immunodeficiency virus D) papillomaviruses
A mountain rain shadow is the
a. arid area on the windward slope. b. wet area on the windward slope. c. arid area on the leeward slope. d. wet area on the leeward slope. e. arid area on either slope.
To produce a genomic library DNA, DNA fragments are incorporated into plasmids that are introduced into bacteria
__________________ Indicate whether the statement is true or false.
What are plants that flower only once before they die, normally after two seasons of growth, called?
A. Perennials B. Dicots C. Monocots D. Annuals E. Biennials