Check all of the features of C. elegans that make it a great model system to study developmental processes.
_____ C. elegans is ubiquitous in the wild
_____ C. elegans is small and fast growing
_____ a complete lineage map exists
_____ the organism is transparent
_____ C. elegans is useful in experimental genetics
_____ C. elegans is ubiquitous in the wild
__X__ C. elegans is small and fast growing
__X__ a complete lineage map exists
__X__ the organism is transparent
__X__ C. elegans is useful in experimental genetics
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What is the average lung volume for men and women, respectively?
a. 5.7 liters, 4.2 liters b. 4.2 liters, 5.7 liters c. 4.2 liters, 4.4 liters d. 6.3 liters, 4.7 liters e. 5.7 liters, 5.4 liters
Cardio-cerebral resuscitation (CCR) differs
from CPR in what way?
a. in CCR, an electrical shocking device is used but not in CPR b. in CPR, an electrical shocking device is used but not in CCR c. in CCR, mouth-to-mouth resuscitation is used but not in CPR d. in CPR, mouth-to-mouth resuscitation is used but not in CCR e. CCR is not as effective as CPR
Pigment molecules are most like
a. microwave ovens. b. antennas. c. microphones. d. a computer mouse. e. dvds.
Which situation(s) might warrant the removal of a histidine tag when purifying a recombinant protein?
A. The expression vector used for inserting the gene of interest already contains histidine-encoding sequences. B. Histidine residues inhibit protein folding, thereby decreasing the functionality of the protein. C. Histidine residues bind preferentially to nickel resins on the column during purification, and are not washed away. D. All of the choices are correct.