MD. SHAKIL SARKER

Mutation Introduction Mutation. Mutations are happening in our cells all the time, but almost none of these affect our health. This is very different than what we often see in science fiction in movies. In real life, a mutation is never so beneficial that it turns a person into a superhero or does something bizarre like cause them to grow wings. There are many reasons that mutations usually don't have major consequences. One reason is that our cells have very sophisticated machinery for repairing mutations very quickly. So there's not enough time for them to cause problems. Another is that most mutations occur in somatic cells like muscle cells or skin cells and can only affect the cell where the mutation occurred and cells that grow from that cell.  Definition Mutation is the change in our DNA base pair sequence due to various environmental factors such as UV light, or mistakes during DNA replication. The DNA sequence is specific to each organism. It can sometimes undergo chan...

  Air Conditioning Contents Introduction What is meant by Air conditioning? Why do we need Air conditioning? Functions Objectives & importance of Air conditioning. Pharmaceutical Application  Difference between Air conditioner and Air cooler Comfort Zone  Types of Air Conditioner Design of an Air Conditioned Room  Selection Criteria  of an Air  Conditioner  Pharmaceutical Needing of Air  Conditioner Introduction An air conditioning system is an electrical device that is purposely installed for the removal of heat and moisture from the interior of an occupied space. It is a process that is commonly used to achieve a more comfortable environment, basically for humans and other animals. An air conditioning system is also used to cool and dehumidify rooms that contain heat-producing electronic devices, such as computer servers, and power amplifiers. It is also used in space that contains delicate products like artwork. Cooling is generally achieve...