The central dogma describes the flow of information of gene expression as ____
a. DNA ® RNA ® protein
b. RNA ® DNA
c. RNA ® DNA ® protein
d. protein ® DNA ® RNA
e. DNA ® protein ® RNA
ANSWER: a
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Which of these scientist(s) was/were involved in, among other things, investigating the idea of spontaneous generation?
A. Redi B. van Leeuwenhoek C. Pasteur D. Escherich E. Redi AND Pasteur
Many marine organisms incorporate carbon into their shells. After they die, these shells become part of the ____
a. atmosphere b. sediment c. ocean d. ocean food web e. land food web
Bone remodeling not only replaces old bone, but it also
a. maintains homeostasis of the blood level of calcium. b. leads to osteoporosis. c. decreases blood calcium levels. d. causes activation of phagocytic white blood cells. e. causes complete reshaping of bones.
A healthy male will release ____ sperms during one ejaculation.
A. 300 B. 3,000 C. 30,000 D. 300,000,000