Summary. DNA is tightly packed in the nucleus of every cell. DNA wraps around special proteins called histones, which form loops of DNA called nucleosomes. These nucleosomes coil and stack together to form fibers called chromatin.Chromatin in turn forms larger loops and coils to form chromosomes.ummary. DNA is tightly packed in the nucleus of every cell. DNA wraps around special proteins called histones, which form loops of DNA called nucleosomes. These nucleosomes coil and stack together to form fibers called chromatin.
A driving test is a high-stakes test: Without passing the test, the test taker cannot obtain a driver's license. A high-stakes test is a test with important consequences for the test taker.Passing has important benefits, such as a high school diploma, a scholarship, or a license to practice a profession. Sometimes a high-stakes test is tied to a controversial reward. 2  For example, some people may want a high-school diploma to represent the verified acquisition of specific skills or knowledge, and therefore use a high-stakes assessment to deny a diploma to anyone who cannot perform the necessary skills.
The goal of the OAT is to use a standardized testing process to create an objective assessment of a test taker's knowledge and skills. In other words, it's more about what you know than your ability to solve clever puzzles.