What is the term used for groups of microbes that have similar metabolic requirements and therefore live in similar environmental niches?
A. Ecosystem
B. Guild
C. Microbiome
D. Population
B. Guild
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The base analog, 5-bromouracil substitutes for the nucleotide base, _____________, in a DNA
molecule. Fill in the blank(s) with the appropriate word(s).
Histone proteins are the principal agents in chromatin packaging. The nucleosome core particle is a heterooctameric protein complex that contains two molecules each of the four histones H2A, H2B, H3, and H4
Describe the process of managing existing nucleosome core particles during replication and the process of adding these and new nucleosome core particles to DNA after the replication fork passes.
Which element is a macronutrient in plants?
a. sodium b. calcium c. manganese d. zinc e. copper
Unstable isotopes can be useful
A) catalysts. B) in medical diagnosis. C) in vitamins. D) in the formation of hydrogen bonds. E) as buffers.