The Sigma Factor of E. Coli RNA Polymerase

question 50

Multiple Choice

The sigma factor of E. coli RNA polymerase:

• A) associates with the promoter before binding core enzyme.
• B) combines with the core enzyme to confer specific binding to a promoter.
• C) is inseparable from the core enzyme.
• D) is required for termination of an RNA chain.
• E) will catalyze synthesis of RNA from both DNA template strands in the absence of the core enzyme.

Understand the role of mutation-selection balance in maintaining genetic diversity.

Recognize the importance of population structure and gene flow in evolution.

Describe mechanisms that prevent or reduce self-fertilization in plants.

Understand the concept of heterozygote advantage and its implications for allele frequencies.

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Definitions:

Economic Citizenship

A concept where citizenship status and rights are linked to economic contributions or investments in a country.

Social Insurance Programs

Government-sponsored programs designed to provide financial support to individuals in events of unemployment, disability, or old age, aiming to protect against economic risks.

Federal Workmen's Compensation Laws

Laws enacted to provide financial and medical benefits to workers injured on the job, ensuring compensation without the need for litigation.

Woodrow Wilson

The 28th President of the United States (1913-1921), known for his leadership during World War I and his advocacy for the League of Nations.