Isotopes are different forms of the same element.
Answer the following statement true (T) or false (F)
True
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Chaperones mediate nucleosome assembly. From the list below, what must happen first?
A. The CAF-1 chaperone binds an H3-H4 dimer and deposits it onto the DNA strand. B. H3 and H4 form heterotetramers. C. The NAP-1 chaperone assembles two H2A-H2B heterodimers with a H3-H4 tetramer. D. The CAF-1 chaperone binds an H2A-H2B dimer and deposits it onto the DNA strand.
Which activity will release mercury into the atmosphere? a. All of these choices will release mercury into the atmosphere
b. Volcanic eruptions c. Burning of fossil fuels d. Flying in an airplane e. Driving a car
The meiotic process in humans that results in the production of sperm is
A. oogenesis. B. mitosis. C. spermatogenesis. D. polar body formation.
Why do polar bodies form?
A. They nurse the egg as it leaves the follicle. B. This is extra chromosomal material representing the X chromosome in each female cell. C. They orient the sperm toward the egg. D. They allow a reduction in chromosomes while preserving all the food for one egg. E. They orient the egg for penetration by the sperm.