The Lambda Genome Is Replicated by a Rolling Circle Mechanism

question 36

Multiple Choice

The lambda genome is replicated by a rolling circle mechanism. What is the end result after a round of replication?

• A) a single-stranded DNA that is immediately packaged in the phage head
• B) two molecules resulting from a step of circle-to-circle replication
• C) several circular molecules inserted into each other; the circles are cleaved at the cos sites and eventually relegated
• D) a concatemer (i.e., multiple genomes joined end to tail, which are cleaved at cos sites by a terminase), producing linear double-stranded DNA prior to packaging
• E) several Okazaki fragments that are subsequently ligated

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Definitions:

Productivity

The measure of the efficiency of a person, machine, factory, system, etc., in converting inputs into useful outputs.

Average Product

The output per unit of input, such as labor or capital, calculated by dividing total output by the total quantity of the input.

Marginal Product

The additional output produced as a result of using one more unit of a particular input, holding all other inputs constant.

Capital/Labor Ratio

The capital/labor ratio is a measure used in economics to indicate the amount of capital relative to the quantity of labor used in the production process.