In phototropism, shoots respond to ___ light
a. red
b. green
c. yellow
d. blue
e. ultra-violet
D
Biology & Microbiology
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The RNA World hypothesis isdirectly supported by all the following except:
A. catalytic RNAs. B. ribozymes showing diverse function. C. ribosome structure. D. micelle to vesicle formation.
Biology & Microbiology
Secondary metabolites that function to protect plants from viral, fungal and bacterial pathogens are
a. systemins. b. phytoalexins. c. PR proteins. d. R genes. e. heat-shock proteins.
Biology & Microbiology
When you look at a pine tree, the plant you see in the _________.
A. diploid sporophyte B. haploid gametophyte C. haploid sporophyte D. diploid gametophyte
Biology & Microbiology
The sacral vertebrae are anterior to the thoracic vertebrae
a. true b. false
Biology & Microbiology