Each genotype can only produce a single phenotype

a. true
b. false


Answer: b. false

Biology & Microbiology

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Which contraceptive method is the most effective form of birth control?

a. condoms b. diaphragms c. abstinence d. oral contraceptives e. vasectomy

Biology & Microbiology

Gram-negative bacteria are characterized by the presence of a gram-negative envelope. Which of the following are components of this envelope?

A) The plasma membrane, outer membrane and periplasm. B) The plasma membrane and the outer membrane, peptidoglycan layer and periplasm. C) The outer membrane, peptidoglycan and periplasm. D) The plasma membrane, peptidoglycan and the outer membrane.

Biology & Microbiology

The main function of bacterial endospores is:

A. Protection of bacteria against phagocytosis B. Survival against environmental dangers C. Induction of antibiotic resistance D. Recognition of specific receptors on target cells E. Reproduction

Biology & Microbiology

Which substance is most likely an enzyme?

A) proline B) stearic acid C) endopeptidase D) acetylcholine

Biology & Microbiology