________ provide valuable flood control because they can hold large volumes of water
Fill in the blank(s) with correct word
Wetlands or Marshes (either term can be used here)
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Illustrate and explain an operon that is subject to both positive and negative control containing the operator region, the operon, the promoter, the activator binding site, and the functional genes in a DNA sequence
Also compare and contrast the roles activators and repressors have in regulating the illustrated operon. What will be an ideal response?
Most of the effort involved in recombinant DNA technology involves
A) identifying and separating cells that contain the gene of interest. B) finding a restriction enzyme to cut DNA from a donor cell. C) identifying a cloning vector that can hold a gene. D) finding uses for recombined DNA.
To engulf a bacterium, a white blood cell
would use
a. facilitated diffusion b. osmosis c. phagocytosis d. exocytosis e. sodium-potassium pumps
The first known primates were characterized as
a. arboreal and nocturnal. b. ground-dwelling and nocturnal. c. arboreal and diurnal. d. ground-dwelling and diurnal. e. none of these.