tag:blogger.com,1999:blog-3448354324311158554.post3539905151539925900..comments2023-06-08T04:54:51.969-07:00Comments on A2 Biology: The use of labelled DNA probes and DNA hybridisation to locate specific genes. Once located, the base sequence of a gene can be determined by • restriction mapping • DNA sequencing. Many human diseases result from mutated genes or from genes that are useful in one context but not in another, e.g. sickle cell anaemia. DNA sequencing and the PCR are used to produce DNA probes that can be used to screen patients for clinically important genes. The use of this information in genetic counselling, e.g. for parents who are both carriers of defective genes and, in the case of oncogenes, in deciding the best course of treatment for cancers. Candidates should understand the principles of these methods. They should be aware that methods are continuously updated and automated.HannahHelphttp://www.blogger.com/profile/03691395988069139300noreply@blogger.comBlogger1125tag:blogger.com,1999:blog-3448354324311158554.post-32505790015932470212016-03-17T23:20:20.031-07:002016-03-17T23:20:20.031-07:00I have read your introduction carefully and unders...I have read your introduction carefully and understand the DNA sequencing.I just started to do molecular biology experiments. There many problems not very clear. DNA can be sequenced, so may I ask that can <a href="http://www.cd-genomics.com/cDNA-library-construction-service.html" rel="nofollow">cDNA sequencing</a> have the same function?Anonymoushttps://www.blogger.com/profile/11258942440378850164noreply@blogger.com