Pituitary secretion of ADH increases in response to high blood ______.
Fill in the blank(s) with the appropriate word(s).
Answer: osmolarity
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Which of the following is NOT part of the structure of the nucleosome core particle?
A. It is composed of an octamer of proteins. B. There is a linker region between two nucleosomes of about 200 base pairs. C. There are two copies each of H2A, H2B, H3 and H4. D. The DNA is wrapped around the core slightly over two complete turns E. The DNA wrapped around the core contains 146-147 base pairs.
Ion channels that can be opened by physiological stimuli are said to be ____
Fill in the blank(s) with the appropriate word(s).
Answer the following questions about DNA replication
A. On a DNA strand that is being synthesized, which end is growing—the 3? end, the 5? end, or both ends? Explain your answer. B. On a DNA strand that is being used as a template, where is the copying occurring relative to the replication origin—3? of the origin, 5?, or both?
Phosphorylation of nuclear lamins regulates their assembly and disassembly during mitosis. You add a drug to cells undergoing mitosis that inhibits the activity of an enzyme that dephosphorylates nuclear lamins
What do you predict will happen to these cells? Why?