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.
detailnote on structure of stomach
Results of Monohybrid Crosses Mendel got the following results from his monohybrid crosses :- 1. F 1 plants produced by a cross between two plants pure for the cont
Q. What are the main symptoms of the pulmonary and of the intestinal phases of the ascaris infestation? In the pulmonary period the ascaris infestation causes hemoptysis, cough
What was Lamarck's explanation for the succession of fossils in a given location? ps: I want to the idea for the succession of fossils, not the whole difference between Darwin and
Devonian is the period of geologic time from 410 - 360 million years before the present. Life on land diversified, with amphibians appearing late in this period of time. Plants we
Explain Diet history and nutrient intake Diet history and nutrient intake : This is used to evaluate diet for nutrient or food intake. Common methods used include the 24-h
What is prophylaxis? Prophylaxis are measures taken to stop diseases. For instance, the use of condoms in sexual relations is a prophylaxis against contamination by agents that
Phylum Tracheophyta Tracheophytes mean vascular plants. Tracheophyta includes ferns, the gymnosperms and the flowering plants. They have appeared some 400 million years ago, an
In what two ways will the composition of blood coming from the pulmonary artery vary from that going to the pulmonary vein? Blood in the pulmonary artery will have less oxygen
Define Obligatory and Facultative water excretion? i) Obligatory water excretion: The kidney is 'obligated' to excrete some water to rid the body of its daily load of urinary s
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: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd