A(n) ________ is a substance that accepts hydrogen ions or, when it dissociates in water, will give off hydroxide ions
Fill in the blank(s) with correct word
base
Biology & Microbiology
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While the gene encoding the small subunit of ribosomes was used to generate the universal tree of life,
many genes are inappropriate choices for this analysis because horizontal gene transfer has occurred for billions of years between the ancestors giving rise to all three domains. A. true B. false
Biology & Microbiology
Extinction is most likely an example of ____
a. microevolution b. macroevolution c. orthogenesis d. uniformitarianism e. gradualism
Biology & Microbiology
What color develops when ninhydrin reacts with amino acids in a sample?
a. Blue b. Blue-green c. Purple d. Red
Biology & Microbiology
Maturation of T cells occurs in the
A. lymph nodes. B. Peyer's patches. C. spleen. D. thymus. E. bone marrow.
Biology & Microbiology