The correct answer is methylation.
This process refers to the addition of methyl groups to the DNA molecule, when the activity of such DNA segments is slightly altered. The more we age, the less methylation there is, which is why the genes of the elderly are different from those of young people.
Answer: a.Effort-Performance
Explanation:
Effort-to-Performance is guided by expectancy.
Expectancy in terms of an employee refers to how one believes that there is a high probability that their effort will result to successful performance.
This will increase what one expects , when one has high expectancy it affects the probability to succeed by increasing it, however if one has low expectancy it lowers the probability of putting effort that will result to a successful performance. If Loti Knott can have high expectancy this will increase her motivation which will lead to her putting more effort which will lead to success.
Magnetic Force? I think aha. Almost positive.
The answer is D because you want to have a control group! Hope it helps!