Search found 35 matches

by rob3
Thu Nov 23, 2006 9:50 am
Forum: Molecular Biology
Topic: RNA extraction
Replies: 1
Views: 1351

RNA extraction

Hey,

I know about the process for DNA extraction from cells, but am slightly confused as to the difference between RNA and DNA extraction. Can anyone outline the process for extracting RNA from cells?

Thanks,
Rob
by rob3
Wed Nov 22, 2006 7:43 pm
Forum: Evolution
Topic: Just a simple question about Evolution
Replies: 44
Views: 26374

Do you mean the purpose of life as regards to how life came about? If you do , I am sure that most non-creationists will agree that there was no purpose for life coming into existence; life does not "have" to exist, however, the chances are though that given the disparity that exists in th...
by rob3
Fri Nov 17, 2006 8:22 am
Forum: Physiology
Topic: Reptilian Respiration
Replies: 7
Views: 13262

I thought that high body heat (e.g. mammals) was caused by inefficient transfer of energy during respiration and is entirely a passive process. Is energy actively used to produce heat?
by rob3
Sun Nov 12, 2006 7:00 pm
Forum: Evolution
Topic: Biological, cultural and technological evolution?
Replies: 14
Views: 18513

I dont quite understand your question, however, you might find the chapter on 'memes' in 'The Selfish Gene' by Richard Dawkins helpful. From Wikipedia: "The term "meme" .... coined in 1976 by Richard Dawkins, refers to a unit of cultural information transferable from one mind to anoth...
by rob3
Sun Nov 12, 2006 5:49 pm
Forum: Physiology
Topic: Reptilian Respiration
Replies: 7
Views: 13262

Thanks very much; that has made things much clearer. Am I correct in assuming that the reason why less respiration is required to be carried out, is because reptiles usually move about less than warm-blooded mammals?
by rob3
Sun Nov 12, 2006 3:34 pm
Forum: Physiology
Topic: Reptilian Respiration
Replies: 7
Views: 13262

Reptilian Respiration

hey, I know that warm blooded animals are so because the energy released by the oxidation of glucose is not transerred 100% efficiently to ATP, therefore some is lost as thermal energy. I am slightly confused as to why reptiles are cold blooded, is their repiration process much more efficient than o...
by rob3
Sun Nov 12, 2006 3:28 pm
Forum: Genetics
Topic: Selfish Gene query
Replies: 9
Views: 4535

I have the new edition-30th anniversary copy. Thanks for all your help everyone.
by rob3
Fri Oct 27, 2006 8:33 am
Forum: Genetics
Topic: Selfish Gene query
Replies: 9
Views: 4535

I have read it, but I skipped some small bits out, I hadnt realised that it had any examples. Thanks.
by rob3
Mon Oct 23, 2006 11:45 am
Forum: Genetics
Topic: Selfish Gene query
Replies: 9
Views: 4535

Thanks,
How does a dominant gene inhibit the expression of its allele?
by rob3
Tue Oct 17, 2006 10:17 pm
Forum: Genetics
Topic: X & Y chromosomes question
Replies: 5
Views: 3085

The list of genes on any chromosome is extremely long, and is not fully known, therefore the list on phenotypic traits that the genetic information in the chromosome control would be very very long
by rob3
Tue Oct 17, 2006 10:12 pm
Forum: Genetics
Topic: Selfish Gene query
Replies: 9
Views: 4535

Selfish Gene query

Hey all, I have been going over my UCAS statement (required for university entry) and have noticed an error of words, it is too late to change now however I believe there could be a way out. What I need to know is a specific example of a gene actively inhibiting the expression of its allele in the p...