In humans, gametes are different than other cells of the body in that they are _________
A. diploid
B. haploid
C. genetic mutations
D. morphs
E. None of the answers are correct
B
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Why do cells go through fermentation?
a. to replenish ADP b. to replenish NADH c. to replenish FAD d. to replenish O2 e. to replenish NAD+
First exposure to the allergen (hapten) causes an increase in the number of:
A. Th1 cells B. B cells C. antibodies D. cytotoxic T cells
Two forms of hemophilia are determined by genes on the X chromosome in humans. Assume that a phenotypically normal woman whose father had hemophilia is married to a normal man. What is the probability that their first son will have hemophilia?
A) 1/2 B) 100% C) zero D) 1/4 E) 1/3
THe lipid bilayer is not permeable to ____
a. Carbon dioxide b. Lipids c. Oxygen d. Sodium ions