What is a toxin from Bacillus thuringiensis used for and classified as?
What will be an ideal response?
To kill off insects
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When a recipient cell acquires a piece of naked DNA from the environment, it is called
A. conjugation. B. transduction. C. transfection. D. transformation.
Which of the following is an informational macromolecule?
A) DNA B) ATP C) starch D) glycogen E) polypeptide
Darwin obtained which of the following in the Essay on the principle of Population by Malthus?
A. Organisms are varied and some variations are inherited. B. Populations grow constantly. C. An individual's chance of survival is random. D. Species do not change over time. E. More individuals of a population are born than survive to reproduce.
In mammals, the master clock is located in the:a
pineal gland. b. suprachiasmatic nucleus. c. crepuscular gland. d. biological clock. e. pituitary gland.