Allergic patients receiving small, controlled injections of specific allergens are undergoing ________.
A. degranulation
B. desensitization
C. tissue matching
D. sensitization
Answer: B
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Mendel's work with two-factor (dihybrid) crosses led directly to which of the following?
A. Chromosomal theory of inheritance B. Particulate theory of inheritance C. Law of segregation D. Law of independent assortment E. Theory of biological evolution
If the first electron transfer chain in the lightdependent
reactions of photosynthesis was stopped, which of the following would NOT be generated?
a. oxygen gas b. NADPH c. ATP d. ATP and NADPH e. none of these would be generated
A pregnant woman (first trimester) is concerned that she has been exposed to a chemical that blocks estrogen and progesterone receptors so that the body does not recognize these hormones
What is the most important reason she should be worried about this? A) GnRH may be inhibited. B) Luteinizing hormone (LH) may cause the release of another egg. C) Ovulation might occur. D) Menstruation may occur, thus causing the embryo or early fetus to be lost.
Why is it not advisable to take antibacterial medicines when you have a cold or the flu?
What will be an ideal response?