Which flower part develops into a fruit?
a. ovule
b. ovary
c. base of the style
d. stigma
e. stamen
Answer: b. ovary
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Which of the following symptoms of trichinosis is most indicative of this disease?
A. Shortness of breath B. Eosinophilia C. Puffiness around the eyes D. Abdominal pain
Crossing over
a. increases variability in gametes. b. happens only once per homologue pair. c. occurs between sister chromatids. d. prevents genetic recombination. e. is followed immediately by separation of each of the chromatids.
Coenzymes such as ___________ are used to carry electrons to and from many kinds of oxidation/reduction reactions.
A. NAD+ B. Vitamin H C. purines D. zinc
Photophosphorylation differs from oxidative phosphorylation in that
A) it involves an electron transport chain. B) energy is stored in the form of a proton concentration difference. C) the final electron acceptor is NADP+ and not oxygen. D) its enzymes are membrane-bound. E) regeneration of ATP is driven by a flow of protons through an ATP synthase.