« previous next »

Author Question: Enzymes that break down DNA catalyze the hydrolysis of the covalent bonds that j (Read 1329 times)

camila

  • Hero Member
  • *****
  • Posts: 705
on: Jun 5, 2013
Enzymes that break down DNA catalyze the hydrolysis of the covalent bonds that join nucleotides together. What would happen to DNA molecules treated with these enzymes?
A) The two strands of the double helix would separate.
B) The phosphodiester linkages of the polynucleotide backbone would be broken.
C) The purines would be separated from the deoxyribose sugars.
D) The pyrimidines would be separated from the deoxyribose sugars.
E) All bases would be separated from the deoxyribose sugars.


ricki

  • Full Member
  • ***
  • Posts: 200
Reply #1 on: Jun 6, 2013
Try this as the answer B. Hope it helps.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question

camila

  • Hero Member
  • *****
  • Posts: 705
Reply #2 on: Jun 6, 2013
Thanks :)


« previous next »
 

Did you know?

More than 20 million Americans cite use of marijuana within the past 30 days, according to the National Survey on Drug Use and Health (NSDUH). More than 8 million admit to using it almost every day.

Did you know?

The first oral chemotherapy drug for colon cancer was approved by FDA in 2001.

Did you know?

Blood in the urine can be a sign of a kidney stone, glomerulonephritis, or other kidney problems.

Did you know?

It is important to read food labels and choose foods with low cholesterol and saturated trans fat. You should limit saturated fat to no higher than 6% of daily calories.

Did you know?

All adults should have their cholesterol levels checked once every 5 years. During 2009–2010, 69.4% of Americans age 20 and older reported having their cholesterol checked within the last five years.

The stability of carbon bonds makes life possible even in extreme environments The stability of carbon bonds makes life possible even in extreme environments
Examples of covalent modifications that occur to the amino terminal tails of histone proteins. The a Examples of covalent modifications that occur to the amino terminal tails of histone proteins. The a
Some biologically important hydrogen bonds Some biologically important hydrogen bonds
The world has been horrified recently at a U.S. Congress so polarized and paralyzed that it cannot p The world has been horrified recently at a U.S. Congress so polarized and paralyzed that it cannot p
Evidence for the covalent intermediate in the mechanism of lysozyme Evidence for the covalent intermediate in the mechanism of lysozyme
Important Bonds in Biological Molecules Important Bonds in Biological Molecules
Video: Attention Deficit Disorder (ADD)

For a complete list of videos, visit our video library