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:)
degree of environmental damage that can be attributed to fossil fuels. ... development of renewable energy sources such as, solar power, wind, ... the earth, yet it is enough to provide all of the earth's energy needs.
I'm not positive but I think it's water because more substances dissolve in water than any other substance so, you can at least try it!!!
Answer:
46
Explanation:
in mitosis it doubles to 92
Answer:
Multicellular organisms are made of more than one cell and are complex organisms.
They are visible to the naked eye.
They possess distinct organs and organ systems.
They are eukaryotes, i.e., they contain membrane-bound structures.
Their cells exhibit division of labor.
Their size increases with the number of cells in an organism
Explanation:
