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!
Radioisotopes
Radioisotopes are those forms of an element which exhibit rzdioactivity and so can be used as markers or tracers. For this purpose, we first introduce the radioisotope in a molecule in the cell and then detect the radioactivity with the help of certain device. For example, if we replace a suitable hydrogen atom of thymidine by 3H, we may trace the course of thymidine in the cell. Since thymidine is a component of DNA but not of RNA, we can be sure that we are following only DNA metabolism. Similarly, to know the course of protein synthesis we may use radioactively labelled amino acids.Radioisotopes are used to:
(a) measure the rates of metabolic turnover of a material within a cell or tissue,
(b) locate the site of synthesis of molecules,
(c) measure the rate of exchange of materials across cellular membranes,
(d) locate a molecule in a cell. Radioisotopes are widely applied to study also the precursor-product relathship.
Many times when a radioactively labelled mokcule (pncursor) is introduced into a system. The molecule is chemically converted into another form (product). For example, when radioactive iron is introduced in blood, radioactivity can be detected in liver femtin and haemoglobin of red blood cells. Similarly, radioactivity of 32P- labelled phosphate can be detected in many phospholipids.
Q What are the typical features of mammals? The typical features of mammals are: body (less or more) covered with hair; presence of the diaphragm muscle that separates the thor
Characteristics of phylum protozoa
The boll weevil, an insect native to Mexico and Central America, is another pest of commercial cotton. When chemical insecticides were first discovered, they proved highly effectiv
What is the mRNA sequence to this DNA sequence : Guanine, cytosine, adenine, adenine, thymine, guanine
Explain about the Nucleoproteins? Nucleoproteins are combinations of nucleic acids land simple proteins, which usually consists of a large number of basic amino acids. Nucleopr
What are the morphological similarities and differences among nematodes and annelids? Nematodes, like annelids, have a cylindrical elongated body. Annelids differentiate from
Sulphur Sulphur is a component of the animo acids methionine, cysteine and cystine; the B-vitamins, thiamin and biotin; as well as a number of the organic compounds. Sulphate,
State the term - neuropsychologists Disorders of speech, language, reading, writing, and mathematical abilities are understood in terms of linguistics and the psychology of lan
Q. Calorie requirements for ulcerative colitis? Energy: The calorie requirements must be increased to: 1) Restore weight status and maintain ideal weight. 2) Compensate f
how many chromosomes in human
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