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).

Biology & Microbiology

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If a pedigree of several generations shows only females affected by a particular trait, it cannot be a(n) ____ trait

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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

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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.

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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

Biology & Microbiology