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Restriction Enzyme

What nullifie...

Question

What nullifies the negative charge on DNA when uncoiled as in Z form of DNA

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Solution

Z-DNA has a negatively charged minor groove and the indistinct area where a major groove would normally be has slight positive charged places.this might nullify but overall z-DNA is negatively charged

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Similar questions

Regarding assertion and reason, select the right option.

Assertion [A]: Charge of DNA molecule is negative.
Reason [R]: Histone proteins associated with DNA are positively charged.

DNA molecule is negatively charged because of:

Q. Identify the correct statements from the following.
1. In bacteria, negatively charged DNA is held by positively charged proteins in the nucleoid region.
2. Bacterial DNA is present in the nucleus.
3. The DNA of bacteria is associated with histones.
4. Bacteria have smaller, circular DNA molecules called plasmids.

Q. A recombinant DNA is formed when sticky ends of vector DNA and foreign DNA join. Explain how the sticky ends are formed and get joined.

Q. DNA segment in a neutral pH solution are negatively charged, there are two excess electrons per base pair if a 0.1 micron DNA fragment has a charge of

- 9.1 \times 10^{- 17} C

, how many basepairs are there along this fragment?

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Restriction Enzyme

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