After examining the phylogenetic tree of Micobacterium tuberculosis depicted in the figure above, give a pos-sible explanation for the appearance of a split branch having tips in both the Philippines and the rim of the Indian Ocean
What will be an ideal response?
ANS:
Will vary, but should include the possibility of shared ancestors or movement of people between the two lo-cations.
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The Hadley effect is
A. why water in a toilet bowl spins counter clockwise. B. an explanation for climate patterns that links solar radiation and the spin of the Earth. C. one of the reasons for the extinction of the Panamanian golden frog. D. why water in a toilet bowl spins counter clockwise and an explanation for climate patterns that links solar radiation and the spin of the Earth. E. Only important in southern hemisphere forests on the western sides of mountains.
In humans, the homologous chromosomes are which of the following chromosomes?
a. 1–14 b. 3–22 c. 1–22 d.1–23
The product of chromosome duplication is
a. two chromatids. b. two nuclei. c. two daughter cells. d. two spindles.
When arabinose is present in the environment, the AraC protein acts as a(n) ________ for the E. coli ara operon.
Fill in the blank(s) with the appropriate word(s).