What is the name of the DNA region that controls the expression of a cluster of genes through methylation?
A) imprinting control regions
B) promoters
C) enhancers
D) insulators
E) epimutations
Answer: A
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One of the two major distinguishing characteristics of mollusks is
a. the presence of three body regions. b. the mantle. c. segmentation of the body. d. jointed appendages.
Which factor has the LEAST effect on the amount of incoming light that strikes an area?
A. Latitude B. Temperature C. The tilt of Earth’s axis D. The amount of cloud cover E. Season
The __________ is the pelvic girdle, pectoral girdle, and paired limbs.
Fill in the blank(s) with the appropriate word(s).
The Rn anticipates the child will be worked up for pinworm infection. What is the causative organism?
A. enterobiusvermicularis B. taenia solium C. trichinella spiralis D. ascaris lubricoides