Search found 638 matches

by Cat
Sun Sep 22, 2013 3:13 pm
Forum: Microbiology
Topic: Using oxidizing agents in gram stain
Replies: 1
Views: 3935

Interesting, logical, and probably possible. However, what is the point? Iodine is very cheap and non-hazardous, so, why would you want to change it?
by Cat
Sun Sep 15, 2013 4:08 pm
Forum: Genetics
Topic: Locus specificity and ERVs - Q from a creationist
Replies: 5
Views: 7531

Re: Locus specificity and ERVs - Q from a creationist

The reasoning fails if the adaptive functions do not depend on their exact loci. I don't really understand your reasoning. However, retroviruses are the major players and drivers of evolution. When they insert into host genome, they can alter host genes located at and around the insertion point - t...
by Cat
Sun Sep 15, 2013 3:47 pm
Forum: Molecular Biology
Topic: Gene deletion
Replies: 5
Views: 5345

Use the same protocol, just modify it - substitute Luciferase or other fluorescent protein gene in place of an antibiotic resistance gene.
by Cat
Sun Sep 15, 2013 3:31 pm
Forum: Evolution
Topic: Evolution or De-evolution?
Replies: 52
Views: 83222

Animartco, in part you are right. However, no amount of learned survival skills would help Teacup Chiwawa survive in absence of humans. Also, when you say that traits of domestic animals that disappear in wild population, they disappear due to infusion of genes from interbreeding with other wild pop...
by Cat
Sun Sep 01, 2013 2:23 pm
Forum: Molecular Biology
Topic: Gel Electrophoresis Help!
Replies: 3
Views: 3070

It looks like a bad gel. I suggest to re-run with fresh buffer/gel.
by Cat
Sun Sep 01, 2013 2:05 pm
Forum: Cell Biology
Topic: prokartotes
Replies: 4
Views: 6176

That depends on whether or not you consider ribosomes to be organelles.
by Cat
Sun Aug 18, 2013 4:51 pm
Forum: Microbiology
Topic: Antibody Coating
Replies: 1
Views: 2762

by Cat
Sun Aug 18, 2013 4:49 pm
Forum: Microbiology
Topic: staphylococcus aureus and biofilm formation
Replies: 3
Views: 10795

Genetic mutations can cause antibiotic resistance.
by Cat
Sun Aug 18, 2013 4:36 pm
Forum: Molecular Biology
Topic: DNA helix and gene
Replies: 2
Views: 8611

Yes and no, they do not. They are complementary to each other, so one gene sequence can be found on one strand and the second gene sequence on another (read in the opposite direction). However, both strands are required for transcription to mRNA since it's the complement strand that is used as templ...
by Cat
Sat Jul 20, 2013 4:17 pm
Forum: Evolution
Topic: Is evolution as simple as we think?
Replies: 41
Views: 49507

Re: Re:

Please, read my post carefully. Nice try, Cat. I had asked for an example of archaeological evidence of "new gene events". You provided a link to an article that you claimed provided evidence of "a "new gene" gained". Please read your own posts more carefully. I hope y...
by Cat
Sat Jul 13, 2013 2:59 pm
Forum: Evolution
Topic: Origins of life
Replies: 327
Views: 265777

Re: Origins of life

Hi Deostrol I am not sure what you are getting at but you seem to say everything progresses towards a minimum degree of survival. Once the species is surviving it stops evolving? Any further evolution happens only if that survival is threatened. This is a very valid question and one that I think is...
by Cat
Sat Jul 13, 2013 1:44 am
Forum: Evolution
Topic: Theories - Origin of Life
Replies: 563
Views: 1774396

Re: Theories - Origin of Life

Please don't take my statement any further than what I have said. What pressure is a colony of bacteria being subjected to when you keep them in their optimal environment? How do you account for steady rates of mutation in populations of organisms kept under controlled laboratory conditions? Absenc...