The theory of aging that posits that aging is caused by irreparable damage to the cells, tissues, and organs of an organism brought about by such things as errors in protein synthesis and the accumulation of toxic metabolites is the ________
A) theory of senescence
B) rate of living theory of aging
C) evolutionary theory of aging
D) particulate theory of aging
B
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The lacZ and lacY genes are transcribed when:
A. lactose is present, regardless of the level of glucose in the cell. B. lactose is absent and glucose levels are high. C. lactose is present and glucose levels are low. D. glucose levels are high and lactose levels are low. E. glucose levels are low, regardless of the level of lactose in the cell.
Typical conditions used for sterilization are
A. 100?C for 10 minutes. B. 121?C at 15 psi for 15 minutes. C. 80?C for 15 minutes. D. 72?C for 15 seconds.
The stressor that includes role conflict and burnout is .
A. eustress B. situational stress C. job stress D. role conflict
In eukaryotes, gametes are produced by
A) meiosis. B) prokaryotic fission. C) budding. D) mitosis.