A change in the chromosome number is called a point mutation
Indicate whether the statement is true or false
FALSE
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Which of the following pairs perform essentially the same function in cells?
A. aquaporins and contractile vacuoles B. plasma membranes and cell walls C. turgor pressure and proton pumps D. electrochemical gradient and osmosis
Primary treatment of sewage involves the use of which type of process?
A. Physical/chemical removal of insoluble particulate materials B. Biological removal of inorganic nutrients C. Virus removal/inactivation D. Biological removal of dissolved organic matter
How might an early primate's environment lead to the evolution of a large brain in relation to body size?
What will be an ideal response?
Which of the following is false about rifamycins?
A) They were originally isolated from bacteria. B) They are broad-spectrum antimicrobials that are effective against most Gram-positive bacteria and some Gram-negative bacteria too. C) They inhibit transcription by binding to RNA polymerase. D) Because the chemical structure is such a good fit with RNA polymerase, it is unlikely to cause interactions with any other medications currently known. E) The drugs are useful to combat mycobacterial species that can be especially tough to treat due to the challenges of getting drugs across their waxy mycolic acid-enriched cell wall.