The electronegativity of nitrogen (N) is 3.0, while the electronegativity of hydrogen (H) is 2.1 . Knowing this, consider how the electrons will be shared in ammonia (NH3). What do you predict about the polarity of ammonia?
A. Each H atom has a partial positive charge
B. The N atom has a partial positive charge
C. Each H atom has a partial negative charge
D. The N atom has a strong positive charge
A
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All of the following tumor-suppressor genes inhibit cell division EXCEPT
A. BRCA1. B. Rb. C. NF1. D. p16. E. Rb and p16.
Photosystem I and photosystem II are part of
A. the light reactions and the carbon reactions. B. the light reactions only. C. the light reactions and respiration. D. the carbon reactions only. E. respiration.
Compare the use of biosensors with traditional methods of determining microbial contamination
What will be an ideal response?
A chemical compound is discovered which prevents the actin protein from interacting with the myosin protein. What can you deduce about this compound?
A) It might be an effective compound against amoeboid protozoans but might also be too toxic to human cells to be used. B) It might be an effective compound against bacterial pathogens. C) It might be an effective compound against amoeboid protozoans. D) It might be an effective compound against bacterial pathogens amoeboid protozoans. E) It might have toxic effects against all eukaryotic cells.