Search found 28 matches

by ManBearPig89
Tue Jan 18, 2011 12:19 pm
Forum: Genetics
Topic: Early genetic code
Replies: 4
Views: 2104

As long as the replicators are not working from within a cell, that is obvious, yes.
by ManBearPig89
Tue Jan 18, 2011 10:36 am
Forum: Genetics
Topic: Early genetic code
Replies: 4
Views: 2104

Early genetic code

Hello! I was wondering about the first replicators in Earth's history and the genetics of life on other plantes. I have some questions... Is the main view in genetics that our genetic code is a result of competition among early replicating molecules, leaving RNA/DNA as "winners"? Have ther...
by ManBearPig89
Sun Dec 12, 2010 9:00 pm
Forum: Ecology
Topic: how is pollination an example of mutualism?
Replies: 8
Views: 22373

The bee get no benifit from pollen sticking to it, but the nectar from the flower is a pretty nice trade-of. Bee gets nectar- flower is able to spred it's pollen. I belive some insects make use of the pollen as a protein sourse (for their larva and/ or for themself), thereby getting food directly fr...
by ManBearPig89
Sun Dec 12, 2010 8:15 pm
Forum: Botany Discussion
Topic: Sexual selection in plants
Replies: 7
Views: 4717

thanks, will look into it
by ManBearPig89
Fri Dec 10, 2010 6:46 am
Forum: Botany Discussion
Topic: Sexual selection in plants
Replies: 7
Views: 4717

giving it some thought i think it's not nessicary eighter (at least not in general). The fact the a plant is able to get an insect to pollinate it, or are succesfull in pollinating another flower automaticly will increase selection for good genes by survival of the fittest.
by ManBearPig89
Tue Dec 07, 2010 7:44 pm
Forum: Botany Discussion
Topic: Sexual selection in plants
Replies: 7
Views: 4717

I guess animals don't need receptors, as they most often have some way to know who they are mating with, thereby able to select good genes by avoiding mating e.g. with shabby-looking individuals.
by ManBearPig89
Mon Dec 06, 2010 11:07 pm
Forum: Botany Discussion
Topic: Sexual selection in plants
Replies: 7
Views: 4717

Sexual selection in plants

Are there any, or is the plant happy, as long as it reproduces? I know there are receptors on the flower/ "she-part" of the plant, so the plant don't get pollinated by another species, but is there any way for the plant to "know" if the pollon carrys good/bad genes? Are the same ...
by ManBearPig89
Sun Nov 28, 2010 3:35 am
Forum: Microbiology
Topic: examples of microbial commensialism?
Replies: 3
Views: 11296

examples of microbial commensialism?

Hello! Anyone have a good example of commensalism (one organism living in symbiosis with another organism, with the one org. benefiting, while the other is unaffected) in microbiology? What I can think of is perhaps some of the natural bacteria living on our skin. I know they are good for us (compet...
by ManBearPig89
Sun May 30, 2010 11:28 am
Forum: Molecular Biology
Topic: Enzyme kinetics
Replies: 2
Views: 2392

Enzyme kinetics

Hello! I have a question about enzymes... When looking at the [S] and comparing it to Vmax, does this mean that Vmax is the point when an enzyme can no longer take in any more substrate (moles/ secound?) in it's active site, and when an enzyme is "working hardest" ? I mean, this is when th...
by ManBearPig89
Thu May 13, 2010 3:12 pm
Forum: Evolution
Topic: adaptation in flowers or in the eye's of bees?
Replies: 2
Views: 2041

adaptation in flowers or in the eye's of bees?

Just curious: Did bees (or any other nectar sucking animals) evolve eyes to easier find the flower of desire, or did plants evolve colors to attract the desierd animals for fertilization?


:o
by ManBearPig89
Thu Apr 29, 2010 3:22 pm
Forum: Genetics
Topic: Question: Cloned organisms
Replies: 3
Views: 3865

Question: Cloned organisms

Hello! I was working with my fellow student's on some questions in biochemistry/ genetics, and this one we could not agree on Cloned Organism's (witch is most correct?): a) ... Have reduced ability to grow "as normal" b) ... Are always genotypic and phenotypic identical c) ... can not mult...
by ManBearPig89
Wed Apr 21, 2010 2:01 pm
Forum: Zoology Discussion
Topic: Original function of gills in bivalvia
Replies: 3
Views: 3325

I red on wikipedia that it was difficult to pinpoint the ancestor of bivalvia do to big gaps in the foissil record. Later, i red (here m) that some molluscan might be filter- feeders in early cambrian. Do you think the filers later would develop into gills? I think it might be possible, given the &q...