Approximately ____ genes have been identified in the genome of Arabidopsis thaliana
a. 28,000
b. 5,400
c. 3,200,000
d. 120,000
e. 67,000
A
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What can be said about Drosophila development?
A. Paternal genes determine the initial course of development after fertilization. B. Zygotic genes determine the initial course of development after fertilization. C. Maternal genes determine the initial course of development after fertilization. D. Syncytial blastoderm genes determine the initial course of development after fertilization.
In non-cyclic photophosphorylation, where do electrons go after being released from photosystem II?
1.through an electron transport chain and into photosystem I 2.into photosystem I, through an electron transport chain, and then into NADPH 3.back into water 4.back into photosystem II
What causes the reproductive isolation that can lead to speciation?
A) Members of one group don't want to mate with other groups. B) Members of one group are unable to make fertile offspring with other groups. C) A group is extinct. D) Some members of a group are sterile.
Water's surface tension and heat storage capacity are accounted for by its
A) orbitals. B) hydrogen bonds. C) mass. D) size.