In science, if a result is deemed statistically significant, that means ____
a. it is a very important result
b. it has a high probability of being incorrect.
c. it has a low probability of being skewed by sampling error
d. there is very little variation in the data
e. there is no doubt of the result being true
ANSWER: c
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Which of the following steps of translation does not specifically require the hydrolysis of GTP?
A. release of EF-Tu from the aminoacyl-tRNA inserted at the A site B. the peptidyl transferase reaction C. the movement of the ribosome one codon toward the 3' end of the mRNA D. dissociation of certain release factors during termination
Sodium dodecyl sulfate (SDS) is a detergent commonly added to protein samples before gel electrophoresis. The purpose of the negatively charged SDS is to neutralize the charges and denature the protein to remove secondary structures
Thus, the proteins can be separated on a gel based solely on what parameter?
Bicarbonate is an important buffer in blood and its concentration is regulated by the
A) heart. B) lungs. C) liver. D) kidneys. E) pancreas.
A Viceroy caterpillar feeds on a leaf. One day's feeding consumes 1000 calories worth of leaves. 50% of the calories are lost in its feces and 33% of the calories are used in cellular respiration.How many calories of the original intake are available to add to the caterpillar's biomass each day?
A. 830 calories B. 330 calories C. 500 calories D. 170 calories E. 670 calories