What types of algae get their colour from the pigment fucoxanthin?
a. red algae and golden algae
b. brown algae and golden algae
c. brown algae and green algae
d. red algae green algae
Ans: b. brown algae and golden algae
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Radiation damage to DNA can result in _____.
a) cell death b) malignant disease c) genetic changes d) any of the above
The acid growth hypothesis links
A. cytokinin to thigmonasty. B. ethylene to leaf abscission. C. gibberellin to root elongation. D. oligosaccharins to pH changes. E. auxin to cell wall expansion.
If fungi are to be demonstrated, a good counterstain for the PAS technique is:
a) nuclear fast red b) van Gieson c) light green d) eosin
To convert a nucleoside into a nucleotide, what moiety must be added?
A. One or more double bonds B. One or more pyrimidine bases C. One or more purine bases D. One or more phosphate groups