You wish to confirm that gene X is associated with the F plasmid of your bacterial strain. To accomplish this using bacterial conjugation, you should conjugate your strain with a compatible bacterial strain that is
A) an Hfr strain.
B) another F+ strain.
C) an F' strain.
D) an F? strain.
E) the same F+ strain.
Answer: D
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When a plant cell is placed in a hypotonic solution, the cell wall prevents ____
a. plasmolysis b. diffusion c. active transport d. the cell from bursting e. the cell from shrinking
The extracellular matrix is composed mostly of
1.glycoproteins. 2.DNA. 3.RNA. 4.ribosomes. 5.lipids.
Saliva contains salivary __________ an enzyme that begins the chemical digestion of starch.
Fill in the blank(s) with the appropriate word(s).
Which of the following examples best illustrates the concept of spontaneous generation?
a. During flooding, frogs spontaneously arise from mud. b. When a dried bean is moistened and kept wet, it spontaneously transforms into a bean sprout. c. Some sea anemones spontaneously bud newly developed young from their outer skin. d. All of the above. e. A and B, but not C