Which of the following would be LEAST likely to affect osmosis in plants?
A) temperature
B) a difference in solute concentrations
C) receptor proteins in the membrane
D) aquaporins
E) a difference in water potential
Answer: C
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In a typical sequencing reaction, the amount of dNTPs is much greater than of the ddNTPs. Predict the results if equal amounts of both types of nucleotides were used in each reaction. After gel electrophoresis and visualization:
A. mostly long fragments would be present and no sequence could be read close to the primer. B. mostly short fragments would be present and only sequences very close to the primer could be read. C. the sequence could be read normally; the dNTP/ddNTP ratio does not affect the products of the reaction. D. only the purine reactions would show termination and be read from the gel. E. no bands would be visible because the high concentration of ddNTPs would inhibit the activity of the polymerase.
What percent of implanted clone embryos
survive to be born alive? a. 2. b. 5. c. 10. d. 25. e. 50.
The “leaves” of ferns are known as
a. rhizomes. b. rhizoids. c. fronds. d. sori. e. none of these.
Cerebrospinal fluid is found in the space between ____
a. arachnoid and pia maters b. skull and dura mater c. pia mater and brain d. dura and arachnoid maters e. scalp and skull