Genetic recombination by conjugation was discovered by:
a. Francois Jacob.
b. Elie L. Wollman.
c. Gregor Mendel.
d. Francois Jacob and Elie L. Wollman
e. Elie L. Wollman and Gregor Mendel
D
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The ovaries are regulated by the____
a. anterior pituitary b. posterior pituitary c. hypothalamus d. presence of environmental estrogens e. gonadal hormones
Which of the above plants belong to the same
phylum? a. apple b. dog rose c. arctic rose d. marijuana e. all of these
The ultimate source of energy for photosynthetic reactions in a plant is
A. plants. B. catabolism. C. the sun. D. glucose. E. glycogen.
Evidence of which structure or characteristic would be most surprising to find among fossils of the Ediacaran fauna?
a. Scavenging b. True tissues c. Hard parts d. Bilateral symmetry e. Filter-feeding