Conjugation is a type of horizontal gene transfer that relies on a structure known as a pilus to transport genetic material between bacteria
A. true
B. false
A
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Which of the following statements is CORRECT about active transport?
A. It requires energy. B. It is an active process in which molecules move from a region of lower concentration to one of higher concentration. C. It requires integral proteins. D. It is necessary to maintain solute gradients across a membrane. E. All of the choices are correct.
Underground stems are called __________, and they may store __________
a. taproots; starch b. taproots; toxins c. tubers; starch d. tubers; toxins
The part of the brain that controls the basic responses necessary to maintain life processes (breathing, heartbeat) is the:
a. medulla oblongata b. corpus callosum c. fissure of Rolando d. cerebellum e. cerebral cortex
Which of the following cannot be a product of transcription?
A. protein B. mRNA C. tRNA D. rRNA