« previous next »

Author Question: How does a bacterial cell protect its own DNA from restriction enzymes? A) by ad (Read 692 times)

camila

  • Hero Member
  • *****
  • Posts: 705
on: Jul 3, 2013
How does a bacterial cell protect its own DNA from restriction enzymes?
A) by adding methyl groups to adenines and cytosines
B) by using DNA ligase to seal the bacterial DNA into a closed circle
C) by adding histones to protect the double-stranded DNA
D) by forming "sticky ends" of bacterial DNA to prevent the enzyme from attaching
E) by reinforcing the bacterial DNA structure with covalent phosphodiester bonds


Jesse_J

  • Sr. Member
  • ****
  • Posts: 282
Reply #1 on: Jul 4, 2013
It's definitely A, good luck with the rest.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question

camila

  • Hero Member
  • *****
  • Posts: 705
Reply #2 on: Jul 9, 2013
Thanks :D


« previous next »
 

Did you know?

Many medications that are used to treat infertility are injected subcutaneously. This is easy to do using the anterior abdomen as the site of injection but avoiding the area directly around the belly button.

Did you know?

Atropine, along with scopolamine and hyoscyamine, is found in the Datura stramonium plant, which gives hallucinogenic effects and is also known as locoweed.

Did you know?

Cutaneous mucormycosis is a rare fungal infection that has been fatal in at least 29% of cases, and in as many as 83% of cases, depending on the patient's health prior to infection. It has occurred often after natural disasters such as tornados, and early treatment is essential.

Did you know?

Serum cholesterol testing in adults is recommended every 1 to 5 years. People with diabetes and a family history of high cholesterol should be tested even more frequently.

Did you know?

Once thought to have neurofibromatosis, Joseph Merrick (also known as "the elephant man") is now, in retrospect, thought by clinical experts to have had Proteus syndrome. This endocrine disease causes continued and abnormal growth of the bones, muscles, skin, and so on and can become completely debilitating with severe deformities occurring anywhere on the body.

Breast Cancer Cell Breast Cancer Cell
Examples of four different types of cells from the body. Although each cell has a cell membrane, nuc Examples of four different types of cells from the body. Although each cell has a cell membrane, nuc
Human Cell Structure Human Cell Structure
p53 (normal cell vs tumor cell) p53 (normal cell vs tumor cell)
Membrane potential of a cell permeable to potassium only. Membrane potential of a cell permeable to potassium only.
Allosteric enzymes Allosteric enzymes
Video: Wound Repair Animation

For a complete list of videos, visit our video library