Which of the following is not one of the phases of mitosis?
a. Prophase
b. S phase
c. Metaphase
d. Anaphase
Ans: b. S phase
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Most major enzymatic digestion of food material stakes place where in the digestive system?
A) Stomach B) Small intestine C) Mouth D) Large intestine
In the process of initiation, RNA polymerase and several regulatory proteins bind to a(n) ____________________ that
marks the beginning of a gen Fill in the blank(s) with the appropriate word(s).
Which of the following best defines the term "transgenic organism"?
A) an organism that is the first of its kind to bear a particular allele B) an organism in which a genetic defect has been corrected using recombinant DNA therapy C) an organism containing a gene from another species D) an organism containing genes from three or more species
Which is NOT a correct step in the hormone regulation of blood pressure and reabsorption?
Select one: a. When blood volume and pressure are low, the juxtaglomerular apparatus secretes renin. b. When blood pressure is high, the heart atria secrete ANH. c. High blood pressure causes the kidneys to secrete aldosterone. d. Renin leads to production of angiotensin I and II and eventual reabsorption of sodium ions and water. e. If you drink more water, the pituitary reduces ADH and more water and urine are excreted.