1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
mrs_skeptik [129]
3 years ago
8

How does a bacterial cell protect its own DNA from restriction enzymes?

Biology
1 answer:
r-ruslan [8.4K]3 years ago
3 0

Answer:

How does a bacterial cell protect its own DNA from restriction enzymes?

B. by adding methyl groups to adenines and cytosines

Explanation:

The restriction modification system is for the cells defense mechanism. This system is composed of a restriction endonuclease enzyme and a methylase enzyme and each bacterial species and strain has their own combination of restriction and methylating enzymes.

Bacteria have restriction enzymes, also called restriction endonucleases, which cut double stranded DNA at specific points into fragments. This restriction enzymes don’t cleave the bacteria's own DNA because restriction enzymes do not exist in the bacterial DNA  sequence.

But is if the recognition sequences exist but the enzyme is methylation specific. Bacteria prevent their own DNA from chop down by restriction enzyme through methylation of the restriction sites. Methylation of DNA is a very familiar way to modify DNA function and bacterial DNA is highly methylated.  

You might be interested in
Which is the correct breakdown of the medical term dacryocystorhinostomy into its component parts?
Andreas93 [3]
<span>The breakdown would be dacryo-cysto-rhino-stomy. Dacryo means a combining form denoting tears. Cysto denotes the sac. Rhino means nose. Stomy means surgical opening. Therefore, this means to surgically restore tears into the nose from the lacrimal sac when the nasolacrimal duct isn’t working.</span>
4 0
3 years ago
Describe how the folded structure of a peptide chain and the stereochemistry of an l-amino acid illustrate the difference betwee
snow_tiger [21]

The configuration is a concept that is related to the order (poition) by which different substituents linked to the same central atom, in the case of amino acids, around the central carbon atom. So, amino acids can be divided in two groups, L- and D- forms, analogous to left-handed and right-handed configurations.  

On the other hand, protein folding (folded structure of peptides) is the physical process by which a protein chain acquires its conformation (3D structure) that is usually biologically functional.


7 0
3 years ago
Which nims command and coordination structures are offsite locations where staff from multiple agencies come together? answer ic
ivolga24 [154]

Emergency Operations Centers (EOCs) are the National Incident Management System (NIMS) command and coordination structures that are offsite locations where staff from multiple agencies come together.

Emergency operations center (EOC) is a control facility that functions mainly for incident response. This center serves as a central intelligence arena where response team personnel and decision makers gather and analyze extremely important information, organize response activities, make decisions that guards life and property, communicates with staff and response team personnel and ensure the consistent existence and operation of the organization.


4 0
3 years ago
Petroleum is a mixture of many carbon-based compounds. How is the carbon in petroleum released into the atmosphere?
pishuonlain [190]

Answer:

A

Explanation:

When petroleum products such as gasoline are burned for energy, they release toxic gases and high amounts of carbon dioxide, a greenhouse gas. Carbon helps regulate the Earth's atmospheric temperature, and adding to the natural balance by burning fossil fuels adversely affects our

7 0
3 years ago
A major function of the nervous system is the autonomic operation. Which items are related to this?
lutik1710 [3]
Digestion, medulla, heart, and involuntary muscles
7 0
3 years ago
Other questions:
  • What problem does distilled water in a patient’s bloodstream create?
    12·1 answer
  • The site of photosynthesis in a plant cell is the
    14·1 answer
  • Why does geographic isolation cause speciation?
    12·1 answer
  • The principle difference between where salt marshes and mangrove forests grow is the salinity of the water. true or false
    5·2 answers
  • What kind of environmental change should a tornado be?
    9·2 answers
  • Which resource is a renewable resource?<br><br><br><br><br><br><br> HURRY
    8·1 answer
  • What is the role of microorganisms in food preservation?​
    14·1 answer
  • This type of galaxy is the effect of galaxy collisions and small galaxies without a large center mass?
    12·2 answers
  • Pick the a.b.c below.<br><br>a. 8 grass/m2<br>b. 16 grass/m2<br>c. 24 grass/m2<br>d. 32 grass/m2​
    13·1 answer
  • Which of The following substances below is match with its correct organic group: A)monosaccharides- nucleic acids B) DNA-lipids
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!