When CpG Islands Are Unmethylated, __________

question 56

Multiple Choice

When CpG islands are unmethylated, __________.

• A)chromatin in the promoter region is open, allowing access by transcription factors and RNA polymerase
• B)chromatin in the promoter region is closed, preventing transcription factors and RNA polymerase from binding
• C)chromatin in the enhancer region is closed, so they are unable to bind regulatory proteins to initiate transcription
• D)DNAse hypersensitivity in that region of the chromosome is lost
• E)genes downstream of the CpG islands cannot be expressed, because the promoter region is blocked by histones

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Definitions:

Flexible Exchange Rates

A system under which the value of a country's currency is allowed to fluctuate according to the foreign exchange market.

International Value

The worth or significance of goods, services, or assets on a global scale, often influenced by exchange rates and international trade.

Terms Of Trade

The rate at which units of one product can be exchanged for units of another product; the price of a good or service; the amount of one good or service that must be given up to obtain 1 unit of another good or service.

Balance Of Payments

A summary of all the financial transactions that take place between the individuals, firms, and governmental units of one nation and those of all other nations during a year.