Liver proteins called complement proteins circulate in the blood and are activated to destroy
microorganisms. Indicate whether the statement is true or false.
T
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Taq polymerase was isolated from a thermophile and is used in the polymerase chain reaction (PCR) technique because it does not become inactivated at high temperatures
Indicate whether the statement is true or false.
What is the approximate Q10 value for most enzymes?
A. 0.2 B. 2 C. 5 D. 10 E. 20
Photoperiodism is the ____
a. duration of flowering in a plant b. amount of light needed by a plant to exhibit normal growth c. response of a plant to the duration of light and darkness d. light phase of photosynthesis during which photolysis of water occurs e. opposite of photorespiration
During bacterial conjugation, little circular chromosomes of DNA called plasmids are transferred from one bacterial cell to another. Why does this mechanism not fit the common definition of sexual reproduction?
a. No new offspring is produced. b. No new allelic combinations are formed. c. The cell receiving the plasmid does not contain genetic material from both parents. d. The plasmid can recombine with the recipient cell's chromosome.