Describe the different types of microbial competition and the role of microbial metabolites in mediating those interactions.
What will be an ideal response?
Microbial competition can be:
1) Exploitative, whereby one species draws down a common resource to a level below which other species can survive
2) Interference, whereby one species uses a common resource to synthesize secondary metabolites (i.e. molecules not essential for the growth of the organism) that kill competitors. This can happen at a distance (if metabolites diffuse through the resource to kill the competitor) or through cellular interference (when the cells of the competitors come into contact).
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If a pedigree of several generations shows only females affected by a particular trait, it cannot be a(n) ____ trait
a. autosomal recessive b. autosomal dominant c. Y-linked d. X-linked recessive e. X-linked dominant
To study how genes have evolved, scientists compare the genome sequences of related organisms, a research approach
known as _____.
a. genome sequence determination b. genome annotation c. comparative genomics d. functional genomics e. proteomics
Water molecules are attracted to each other due to the opposite charges created by partial charge separations within the molecules. These attractions are called:
A. double bonds. B. ionic bonds. C. hydrogen bonds. D. peptide bonds. E. covalent bonds.
Neural stem cells are (A)______ cells, and it can differentiate into neuronal progenitor cells and glial progenitor cells. Glial progenitor cells will eventually differentiate into (B)______.
a. (A) multipotent (B) neuron and astrocyte b. (A) multipotent (B) oligodendrocyte and astrocyte c. (A) totipotent (B) oligodendrocyte and astrocyte d. (A) totipotent (B) neuron and oligodendrocyte