Based on the principle of parsimony, which species shares a most recent common ancestor with a species having the sequence TTACC?
Consider the following DNA sequences for four different species:
1: AATCG
2: TAATG
3: ATACC
4: ATAGG
A. Species 1
B. Species 2
C. Species 3
D. Species 4
C. Species 3
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Which numbers identify structures that are found in ALL prokaryotes?
a. 2 and 4 b. 3 and 4 c. 1 and 5 d. 5 and 9 e. 7 and 8
Profilin does all of the following except
A) competes with thymosin ?4 for binding to actin monomers. B) sequesters actin monomers to prevent any polymerization. C) binds to formin in order to "stage" actin monomers for addition to a growing filament. D) promotes actin monomer addition to a filament plus end. E) Profilin does all of the above.
When you walk into your grandma's house, you follow the smell of the baking chocolate chip cookies using ________ cues, but after spending a half an hour in the kitchen,
you cannot notice the strong smell anymore because of ________, meaning that your receptors adjusted. A) visual; sensory adaptation B) olfactory; stapedial reflex C) olfactory; sensory adaptation D) visual; stapedial reflex
Roses are classified as
A) angiosperms. B) bryophytes. C) seedless vascular plants. D) gymnosperms. E) ferns.