Gel Electrophoresis Is a Useful Tool in DNA Cloning

question 21

Multiple Choice

Gel electrophoresis is a useful tool in DNA cloning. At a neutral pH, when voltage is applied, DNA fragments will migrate toward the anode because:

• A) DNA is negatively charged due to its glycine backbone.
• B) DNA is negatively charged due to its phosphate backbone.
• C) DNA is positively charged due to its glycine backbone.
• D) DNA is positively charged due to its phosphate backbone.

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Definitions:

Deadweight Loss

Deadweight loss is a loss of economic efficiency that can occur when the free market equilibrium for a good or a service is not achieved.

MP-3 Player

A portable digital device designed to play audio files in the MP3 format, allowing for the storage and playback of music and other audio.

Tax

A compulsory contribution to state revenue, levied by the government on workers' income and business profits, or added to the cost of some goods, services, and transactions.

Deadweight Loss

An economic inefficiency arising when a good or service fails to meet its free market equilibrium point.