In prokaryotes the DNA molecule that makes up a chromosome is typically ____ and usually has ____
replication origin.
a. circular; one
b. circular; more than one
c. linear; more than one
d. linear; one
e. linear; no
A
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The gene for human ABO blood type, for which three or more alleles persist in a population at a relatively high frequency, is an example of _______.
A. multiple allele system B. polygenic inheritance C. incomplete dominance D. epistasis E. continuous variation
The enteric division of the autonomic nervous system consists of neurons in the digestive tract, the gallbladder, and the
A) heart. B) lymphatic system. C) pancreas. D) thyroid gland.
Match the microscope part with it's function.
Iris diaphragm A) Focus light onto the specimen B) Control the amount of light reaching the specimen C) Brings the specimen into general focus D) Increases the detail of the image
What cells are phagocytes that can also present antigens to TH cells?
A. B cells B. macrophages C. plasma cells D. T cells E. monocytes