Centromeres are described by all of the following events except one. Select the exception
A. They divide in anaphase of mitosis.
B. They connect sister chromatids.
C. They attach chromosomes to spindle fibers.
D. They cross over during prophase I of meiosis.
E. There are no exceptions. All of these events describe centromeres
D
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In eukaryotic cells, transcription occurs
A. on the surface of the nuclear membrane. B. on ribosomes. C. on spliceosomes. D. inside the nucleus. E. on the surface of the plasma membrane.
Retroviruses are medically important viruses because
A) they include the viruses the cause hepatitis. B) some retroviruses cause cancer. C) they include the virus that causes AIDS. D) they include viruses that cause cancer and AIDS.
Which of the following vitamins is not stored in fat?
a. A b. K c. C d. D e. E
Which of the following happens when you
focus on an object close up?
a. the ciliary muscles contract and the lens flattens b. the ciliary muscles relax and the lens bulges c. the ciliary muscles contract and the lens bulges d. the cilliary muscles relax and the lens flattens e. more than one of these occur when you focus on an object close up