When DNA replication occurs, the DNA strand is being unwound, causing the DNA to be overwound tightly past the replication fork.
For example, If you have ever wrapped two strings around each other and then tried to pull part the middle of the string while holding the ends tight, the rest of the string past the place you're pulling the string apart becomes very tight and strained.
Topoisomerase is an enzyme that binds to the DNA and helps release some of that strain by unwinding the DNA past the replication fork.
That means the correct box is the leftmost one. Hope this helps:)
Well we’re all gonna die so like yay but in all seriousness it can have some short term positive effects like spring will come sooner so farmers can plant sooner. Long term the northwest passage with open so it with help with the shipping commerce
B. thick atmosphere
You can also use quizlet to look up answers also, I'm in college and they have never failed me.
Answer:
a) Artery
Explanation:
Arteries, beginning with the aorta extending to smaller branches, carry oxygenated blood away from the heart to tissues supplying them with oxygen.
Used to define and identify geological times.<span />
