What type of bond forms between amino acids at the ribosome during translation?
A) peptide
B) ester
C) phosphodiester
D) hydrogen
A
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If the power fails and the lights go dark, CO2 levels will _____
A) rise as a result of both animal and plant respiration B) rise as a result of animal but not plant respiration C) remain balanced because plants will continue to fix CO2 in the dark D) fall because plants will increase CO2 fixation E) fall because plants will cease to respire in the dark
Chromosomal islands are presumed to have a "foreign" origin based upon three observations. What are these observations and how do they indicate that chromosomal islands are "foreign" in origin?
What will be an ideal response?
The oversecretion of ________ by the thyroid gland can result in ________.
A. T3; hyperthyroidism B. parathyroid hormone; Graves disease C. T3; hypothyroidism D. calcitonin; hyperthyroidism E. T4; hypothyroidism
When did the level of oxygen in Earth's atmosphere become high enough to sustain aerobic respiration?
A) 1.0 billion years ago B) 1.5 billion years ago C) 2.7 billion years ago D) 3.5 billion years ago