Table of Contents
DNA Damage Repair; Types of DNA Damage ; Types of DNA Repair
DNA damage repair is the process by which cells identify and correct damage to the DNA molecule. DNA damage can be caused by a variety of environmental factors, including ultraviolet radiation, radiation therapy, and chemicals.
There are two types of DNA damage: single-strand breaks and double-strand breaks. Single-strand breaks are the most common type of DNA damage and can be repaired by the cell’s own DNA repair mechanisms. Double-strand breaks are more serious and can be repaired by a process called homologous recombination.
There are four main types of DNA repair: base excision repair, nucleotide excision repair, mismatch repair, and double-strand break repair. Each type of DNA repair is responsible for repairing a specific type of DNA damage.
Sources of DNA Damage
There are many sources of DNA damage, including environmental toxins, radiation, and oxidative stress.
Damages Due to Endogenous Sources
There are many endogenous sources of damage to cells and tissues. One common endogenous source of damage is the production of reactive oxygen species (ROS), which are unstable molecules that can damage DNA, proteins, and other cellular components. Another common endogenous source of damage is the production of free radicals, which are unstable molecules that can damage DNA, proteins, and other cellular components. Another common endogenous source of damage is the production of cytokines, which are proteins that can damage cells and tissues.
Damages Due to Exogenous Sources
There are a number of potential exogenous sources of damages that may be suffered by a business. These can include natural disasters such as floods or hurricanes, man-made disasters such as a terrorist attack, or economic conditions such as a recession or inflation.
If a business is located in an area that is prone to natural disasters, it may suffer damage to its property or loss of inventory or equipment. If a business is located in a city that is targeted by a terrorist attack, it may suffer damage to its property or loss of inventory or equipment, as well as business interruption. If a business is located in an area that is experiencing a recession, it may suffer a decrease in sales or a decline in its stock price. If a business is located in an area that is experiencing inflation, it may suffer a decrease in its profits or an increase in its costs.
What is DNA Repair and its Significance?
DNA repair is the process by which cells identify and correct damage to DNA. The significance of DNA repair is that it helps to maintain the stability of the genome and prevent the development of cancer.
Photoreactivation
Is a process by which a photosensitive molecule is regenerated following exposure to light. In the dark, the photosensitive molecule is in an excited state, and can react with other molecules to create new molecules. When the molecule is exposed to light, it is “quenched” and can no longer react with other molecules. However, when the molecule is exposed to light again, it is “reactivated” and can react with other molecules to create new molecules.
Photoreactivation is used in many different applications, including photography, photocopying, and printing. It is also used in DNA repair, which is the process by which damaged DNA is repaired using enzymes that are activated by light.
MMR Vaccine
The MMR vaccine is a vaccine that protects against three diseases: measles, mumps, and rubella. The vaccine is given as a shot in the arm. It is made from a weakened version of the virus that causes measles, mumps, and rubella. The vaccine helps your body build immunity to these diseases.
Excision Repair
Excision repair is a process in which a section of DNA is cut out and the ends are then sealed. This process is used to correct errors that occur when DNA is copied.
Homologous Recombination Repair
The process of homologous recombination repair is used to correct double-stranded DNA breaks. In this process, the broken DNA strands are matched up with a similar, but undamaged, DNA strand. The matching strands are then glued together using enzymes called DNA ligases. This process ensures that the DNA is repaired correctly and that the genetic information is not lost.
SOS Repair
If you have a broken or cracked screen, our SOS repair service can help. We can replace your screen quickly and easily, so you can get back to using your phone as normal. Plus, we offer a 12-month warranty on all screen replacements, so you can rest assured that your phone is in good hands.
