« previous next »

Author Question: How does a bacterial cell protect its own DNA from restriction enzymes? A) by ad (Read 691 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?

In 1835 it was discovered that a disease of silkworms known as muscardine could be transferred from one silkworm to another, and was caused by a fungus.

Did you know?

According to the National Institute of Environmental Health Sciences, lung disease is the third leading killer in the United States, responsible for one in seven deaths. It is the leading cause of death among infants under the age of one year.

Did you know?

The effects of organophosphate poisoning are referred to by using the abbreviations “SLUD” or “SLUDGE,” It stands for: salivation, lacrimation, urination, defecation, GI upset, and emesis.

Did you know?

Fatal fungal infections may be able to resist newer antifungal drugs. Globally, fungal infections are often fatal due to the lack of access to multiple antifungals, which may be required to be utilized in combination. Single antifungals may not be enough to stop a fungal infection from causing the death of a patient.

Did you know?

Acetaminophen (Tylenol) in overdose can seriously damage the liver. It should never be taken by people who use alcohol heavily; it can result in severe liver damage and even a condition requiring a liver transplant.

Bacterial Conjugation and Recombination p2 Bacterial Conjugation and Recombination p2
Stem Cell Hierarchy Stem Cell Hierarchy
Summary of Cell Structures and Functions Summary of Cell Structures and Functions
Major Digestive Enzymes Major Digestive Enzymes
The cell membrane, cytoplasm, nucleus, nucleolus, ribosomes, centrioles, mitochondria, endoplasmic ... The cell membrane, cytoplasm, nucleus, nucleolus, ribosomes, centrioles, mitochondria, endoplasmic ...
Cell arrangement in the floral meristem Cell arrangement in the floral meristem
Video: Rh blood type and complications during pregnancy & Fertilization

For a complete list of videos, visit our video library