Which of the following DNA base pairs is complementary?
A) adenine and guanine
B) guanine and uracil
C) thymine and guanine
D) cytosine and adenine
E) adenine and thymine
E
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A side chain on an amino acid is sometimes called
A) fibrous or globular. B) a polypeptide chain. C) an R group. D) an isozyme. E) nucleic acid.
A fascicle is a
A) group of muscle fibers that are encased in the perimysium. B) layer of connective tissue that separates muscle from skin. C) group of muscle fibers that are all part of the same motor unit. D) group of muscle fibers and motor neurons. E) collection of myofibrils in a muscle fiber.
List, in order, the structures of the respiratory membrane that carbon dioxide must cross to move from the blood into an air sac of the lung
What will be an ideal response?
Both the nucleus and the mitochondrion are surrounded by a two layer membrane.
Answer the following statement true (T) or false (F)