A Researcher Found a Method She Could Use to Manipulate

question 50

Multiple Choice

A researcher found a method she could use to manipulate and quantify phosphorylation and methylation in embryonic cells in culture.
-In one set of experiments she succeeded in decreasing methylation of histone tails. Which of the following results would she most likely see?

• A) increased chromatin condensation
• B) decreased chromatin condensation
• C) activation of histone tails for enzymatic function
• D) decreased binding of transcription factors
• E) inactivation of the selected genes

---

Definitions:

Body Mass Index

An index for evaluating body fat in adults, factoring in height and weight, suitable for both genders.

Obstructive Sleep Apnea

A disorder where breathing stops and starts during sleep due to throat muscles intermittently relaxing and blocking the airway.

Type 1 Diabetes

An autoimmune condition where the pancreas produces little to no insulin, necessitating lifelong insulin administration.

Body Mass Index

A numerical value derived from a person's weight and height, used to assess whether they are underweight, overweight, or within a healthy weight range.