__________ attach a gametophyte to soil or another surface.
Fill in the blank(s) with the appropriate word(s).
Rhizoids
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Amino acids include a side group as well as ________
A) a central carbon, a hydrogen atom, an amino group, and a carboxyl group B) a central carbon, a hydrogen atom, a hydroxyl group, and a carbonyl group C) a central nitrogen, a carbon atom, a hydroxyl group, and a carbonyl group D) a central nitrogen, a carbon atom, an amino group, and a carbonyl group
Which of the following technologies uses electricity to sort DNA fragments based on their sizes?
A.) genetic screening B.) gel electrophoresis C.) DNA microarrays D.) genetic engineering
Energy that is not converted to useful energy is usually given off as
A) radioactivity. B) light. C) electricity. D) heat. E) entropy.
Over 90% of Staphylococcus aureus bacteria can withstand the effect of penicillin. Why?
A. They produce Beta-lactamase. B. Cell division occurs in successively different planes, and the daughter cells remain attached to one another. C. They produce coagulase. D. They have loosely organized polysaccharide slime layers. E. They produce staphylokinase, which dissolves fibrin threads in blood clots