Which of the following combinations of chromosomes would be typical of a human male? 

A. two X-chromosomes
B. an X-and a Y-chromosome
C. 2 Y-chromosomes
D. None of these is correct.


B. an X-and a Y-chromosome

Biology & Microbiology

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Name three kinds of carbohydrates that can be built using only glucose monomers

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The visual pigment in rods ____

a. works best in bright light b. is more diverse than that found in cones c. is found in the fovea d. is called rhodopsin e. absorbs red light

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What anaerobic excavate protist, including diplomonads and parabasalids, have multiple flagella and no mitochondria?

A. Metamonads B. Phytoplankton C. Trypanosome D. Excavates E. Amoeba

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Mebendazole is used to treat cestode infections. It interferes with microtubule formation; therefore, it would NOT affect

A) bacteria. B) fungi. C) helminths. D) human cells. E) protozoa.

Biology & Microbiology