DNA-binding transactivators are:
A. necessary only for initiation of transcription of housekeeping genes.
B. factors that bind to other proteins, not to DNA directly.
C. factors that complex directly with RNA Pol II to form a preinitiation complex.
D. factors that bind to enhancers.
D
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Investigations into the genetics of obesity have revealed that _____
1.in humans, obesity is believed to be controlled by a single gene interacting with the environment 2.obesity is an autosomal dominant trait 3.humans and mice both have a gene for leptin, which is thought to regulate energy storage 4.mutations probably account for the explosive increase in obesity in developed countries
In the female, the __________ serves as a temporary endocrine gland and secretes __________
a. pituitary; luteinizing hormone and follicle-stimulating hormone b. ovaries; testosterone and luteinizing hormone c. endometrium; estrogens and follicle-stimulating hormone d. corpus luteum; progesterone and estrogens e. uterus; luteinizing hormone and follicle-stimulating hormone
The function of cellular respiration is to _____.
Fill in the blank(s) with the appropriate word(s).
The type of microscope in which you would see brightly illuminated specimens against a black background is
A) Fluorescence B) Phase-contrast C) Electron D) Bright-field E) Dark-field