What is different from one DNA nucleotide to the next?
A) The sugar molecule
B) The phosphate group
C) The base
D) The protein
C
Biology & Microbiology
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In lysogenic conversion, bacteria acquire new genetic information in the form of:
A) bacterial genes. B) naked DNA. C) R-factors. D) viral genes.
Biology & Microbiology
Of the following hominin species, from which did H. sapiens derive?
a. H. habilis b. H. rudolfensis c. H. heidelbergensis d. H. ergaster e. H. erectus
Biology & Microbiology
The oldest fossils are typically found in the sediments ________.
A. located closest to the surface B. located close to water C. located close to human dwellings D. located deep under the surface
Biology & Microbiology
Shallow seas covered much of the land during the:a
Silurian period. b. Precambrian period. c. Ordovician period. d. Triassic period. e. Oligocene epoch.
Biology & Microbiology