How is such a long polymer packaged in a cell?
Answers
Answered by
40
long polymer life dna which a polymer of deoxyribonucleic acids are packaged in a cell ie. nucleus with the help of a basic protein called histone. thus the negatively charged dna gets wrapped around histones octamers (positively charged).
Answered by
11
Long polymer fit in nucleus
Explanation:
- There is a large amount of DNA in our cells which creates a packaging problem. So, in order to maintain a high degree of organization, the DNA is folded. DNA helix combines with a group of eight histone molecules (histone octamer) to form structures called a nucleosome. It can coil the DNA tightly to reduce its size so as to fit them in the cell.
- It is so a large drawback for the cell to manage the polymer. The total length of an E. coli (the most widely studied bacterium and the most trusted friend of molecular biologists) is about 2 micron and its diameter is around 1 micron with a volume of around 1 cubic micron.
Similar questions