Which of the following traits was not studied by Mendel?
A. Flower color
B. Seed color
C. Pod color
D. Pollen color
E. Plant height
D
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Which of the following is TRUE about "type 1
diabetes"?
a. Insulin levels are normal. b. Target cells do not respond to insulin. c. It is the more common form of diabetes. d. It is usually controlled with a strict diet. e. It usually occurs in early childhood.
The most inclusive level of organization listed here is
a(n) a. organ. b. atom. c. molecule. d. multicelled organism. e. cell.
Which of the following fungal infections was extremely rare prior to the AIDS epidemic?
A. pulmonary cryptococcosis B. cutaneous candidiasis C. hypersensitivity aspergillosis D. mycetomas E. Pneumocystis pneumonia
A poison added to an in vitro translation mixture containing mRNA molecules with the sequence 5?-AUGAAAAAAAAAAAAUAA-3? has the following effect:
the only product made is a Met-Lys dipeptide that remains attached to the ribosome. What is the most likely way in which the poison acts to inhibit protein synthesis? (a) It inhibits peptidyl transferase activity. (b) It inhibits movement of the small subunit relative to the large subunit. (c) It inhibits release factor. (d) It mimics release factor.