Elementary school students across the country making bracelets with small rubber loops is an example of a Fad.
"Loop" is a cycle or a continual circular motion. When you are not in the circle, then you don't know what is going on. So being in the loop is indicating that you are aware of the situation. Being kept in the loop is asking someone to keep you informed about what is happening.
A "For" Loop is used to repeat a specific block of code a known number of times. For example, if we want to check the grade of every student in the class, we loop from 1 to that number. When the number of times is not known beforehand, we use a "While" loop.
DNA-looping mechanisms are part of networks that regulate all aspects of DNA metabolism, including transcription, replication, and recombination. DNA looping is involved in the regulation of transcriptional initiation in prokaryotic operons, including ara, gal, lac, and do, and in phage systems.
Learn more about loop here https://brainly.com/question/19344465
#SPJ4
