Native Americans were able to prevent the encroachment of trees and maintain the tallgrass prairies by
A) establishing an extensive irrigation system to increase soil moisture, thus favoring grasses.
B) plowing much of the land for agriculture.
C) clear-cutting the forests for timber and fuel.
D) setting fires periodically to kill the trees.
E) restricting the migrations of bison, which caused the bison to browse heavily on tree seedlings and thus kill them.
D
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If all members of a population have the identical DNA sequence at a given site, that site is said to be _______
A. Monomorphic B. Polymorphic C. Trimorphic
Transposase is
A) required to resolve a Holliday junction. B) involved in the movement of mobile genetic elements in prokaryotic and eukaryotic genomes. C) found only in prokaryotic transposons. D) required for synthesis-dependent strand annealing to repair double-stranded DNA breaks. E) necessary for replicative transposition but not conservative transposition.
A pea is actually a seed.
a. true b. false
PCR-based methods have largely replaced RFLP because of PCR's ability to process ___ samples or ___ samples.
What will be an ideal response?