The Standard or Housekeeping Sigma Factor Used Most Often by

question 50

Multiple Choice

The standard or housekeeping sigma factor used most often by

• A)70
• B)32
• C)S
• D)E
• E)coli RNA polymerase under normal growth conditions is called sigma ___.

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Definitions:

Paedomorphosis

Retention of juvenile or larval features in a sexually mature animal.

Allometric Growth

Variation in the relative rates of growth for different parts of the body during development.

Macroevolution

Large-scale evolutionary events over long time spans. Macroevolution results in phenotypic changes in populations that are significant enough to warrant their placement in taxonomic groups at the species level and higher. Compare with microevolution.

Adaptive Radiation

The rapid diversification of a single ancestor species into a wide variety of forms with different ecological niches.