Where are complement proteins synthesized, and what do they do?
a. in the bone marrow, generate new platelets and T-cells
b. in the kidneys and plasma, destroy intracellular pathogens
c. in macrophages and the liver, destroy extracellular pathogens
d. in the spleen and duodenum, generate macrocytes
c. in macrophages and the liver, destroy extracellular pathogens
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The methodology of microbial ecology includes
A) enrichment and isolation of specific microbes. B) cell-staining methods. C) gene, transcript, and protein characterization. D) enrichment and isolation of specific microbes, cell-staining, and gene, transcript, and protein characterization.
Cephalization refers to
a. a type of symmetry. b. a type of segmentation characteristic of lower forms of life. c. a group of protective cells found in the tentacles of a polyp. d. a transitional state in the life cycle of a jellyfish. e. none of these.
DNA, which is negatively charged, wraps around positively charged histones as part of the packaging of eukaryotic chromosomes
Indicate whether the statement is true or false
_____ is a component of proteins, and _____ is a component of DNA.
A) sulfur, phosphorus B) phosphorus, sulfur C) phosphorus, amino acids D) amino acids, sulfur