Which is not a component of nucleic acids?
A. sulfur
B. pentose sugar
C. organic nitrogenous base
D. phosphate
Answer: A
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An organism that is heterozygous for two traits can produce a maximum of _______ different gametes for these traits.
A. 2 B. 4 C. 2; if they are on the same chromosome D. 4; only if they are on different chromosomes E. 8
It is possible to build a light microscope capable of 10,000× magnification, but the image would not be sharp because resolution is independent of magnification.
Answer the following statement true (T) or false (F)
ADH makes the walls of the collecting duct more permeable to water
____________________ Indicate whether the statement is true or false.
During exercise, the blood returning to a person's heart contains hemoglobin that is about ________ saturated.
A. 97% B. 35% C. 3% D. 75% E. 22%