× Didn't find what you were looking for? Ask a question
Top Posters
Since Sunday
5
o
5
4
m
4
b
4
x
4
a
4
l
4
t
4
S
4
m
3
s
3
New Topic  
chang190 chang190
wrote...
13 years ago
Histones interact with DNA in order to:?
1. counteract the positively charged phosphates in the DNA backbone and allow it to coil more tightly.
2. protect bacterial chromosomes from chemical mutagens.
3. regulate expression of the DNA by making it either accessible or compacted.
4. manage supercoiling by breaking and rejoining DNA molecules.
5.coat the DNA to protect it from nucleases in the cell.


Only one of the following is true!
Read 1368 times
1 Reply

Related Topics

Replies
wrote...
Valued Member
Educator
13 years ago
1. counteract the positively charged phosphates in the DNA backbone and allow it to coil more tightly.
2. protect bacterial chromosomes from chemical mutagens.
3. regulate expression of the DNA by making it either accessible or compacted.
4. manage supercoiling by breaking and rejoining DNA molecules.
5.coat the DNA to protect it from nucleases in the cell.

You see 1 would be correct but phosphate is negatively charged - not positively charged.

The only other option is 3. I'm going with 3.
New Topic      
Explore
Post your homework questions and get free online help from our incredible volunteers
  872 People Browsing
 107 Signed Up Today
Related Images
  
 329
  
 1541
  
 4
Your Opinion
Where do you get your textbooks?
Votes: 284