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.
Windows Hardware Quality Labs testing or WHQL Testing is Microsoft 's testing process which involves running a series of tests on third-party hardware or software, and then submitting the log files from these tests to Microsoft for review.hen Windows XP detects a new device for which it does not have built-in drivers, it will show a Found New Hardware Wizard (see screenshot on the right). One way to avoid the Found New Hardware Wizard from popping up on Windows XP is by pre-installing a WHQL certified driver before the device is plugged in.