A Researcher Found a Method She Could Use to Manipulate

question 57

Multiple Choice

A researcher found a method she could use to manipulate and quantify phosphorylation and methylation in embryonic cells in culture. One of her colleagues suggested she try increased methylation of cytosine (C) nucleotides in the DNA of promoters of a mammalian system. Which of the following results would she most likely see?

• A) decreased chromatin condensation
• B) activation of histone tails for enzymatic function
• C) higher levels of transcription of certain genes
• D) inactivation of the selected genes

---

Definitions:

Labor Force

The total number of people employed or actively seeking employment in a given country or region.

Business Cycle Peak

The highest point of economic activity in a business cycle, marking the transition from an expansion to a contraction phase.

Consumer Price Index

A measure of the average change over time in the prices paid by urban consumers for a market basket of consumer goods and services.

Base Year

A specific year chosen as a point of reference or standard of comparison for financial or economic data.