Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
What are CD4 lymphocytes? What is the relationship between these cells and HIV? How does HIV replicate?
CD4 lymphocytes are T helper lymphocytes that there in their plasma membrane receptor proteins known as CD4.
CD4 lymphocytes are the cells that HIV infects and within which the virus replicates. HIV has proteins in its capsule that bind to the CD4 receptors of lymphocytes. By that bond the virus fuses with the cell membrane and its content (RNA, protease, reverse transcriptase, etc.) penetrates into the cytoplasm and the viral replication process begins.
HIV RNA is then changed into DNA by the reverse transcriptase. The new DNA is inserted into the genetic material of the lymphocyte with the aid of enzymes known as integrases. By transcription and translation this DNA commands the synthesis of proteins essential for the assemblage of new viruses. Long polypeptides are therefore produced and then fragmented into proteins and viral enzymes by the enzyme protease. So new HIV viruses are assembled and break the cell membrane to gain the circulation.
Q. According to the cellular organization how are living beings divided into two groups? Cellular beings are divided into two groups, unicellular beings and the prokaryotes who
Progressive senescence - Senescence This is the third category of senescence. Here also the leaves are shed but it is gradual senescence of leaves up the stem. For example, th
Explain the term- PUPIL Pupil is the aperture in centre of the iris diaphragm that regulates entry of light into the eye. Colour of pupil is said to be black. Actu
Results: Largely depends on the LV function. In most centres surgical mortality is 3 to 4 percent. For patients with severe LV dysfunction the immediate and late results of sur
Explain the Glycemic index in Chronic Diseases? In addition to serve as an aid in planning diets for diabetics, GI of diets has been linked to a number of chronic diseases. Sev
Conduction in Myelinated Axons The myelin sheath provides insulation for the axon preventing movements of Na + and K + through the membrane. Therefore, if this myelin sheath
H yd r o p e r i c a r d i um - h e pa titi s syndrome Also known as 'Angara disease' or 'leachy heart disease', this complex illness of poultry spread rapid
What are the main human blood group systems? In humans the major blood group systems are the ABO system, the Rh system and the MN system.
Define on which severity of heat treatment for pasteurization depends? The severity of heat treatment for pasteurization depends on: 1. Heat resistance of target microorgan
why is a potted plant destarched before starting the experiment to investigate the factors necessary for photosynthesis
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd