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Apr
13
comment Electronic cigarettes (e-cigs), any health risks?
Please source your claims. You mention a risk of "nicotine intoxication". What's that? The nicotine high is precisely the reason why people smoke. Nicotine is not in itself particularly harmful, the dangers of smoking are primarily related to imperfect combustion and the subsequent production of CO and free radicals, not to the ingestion of nicotine as such. I have read pretty much everything published on the subject and have yet to see any evidence that e-cigs are harmful and have seen a lot of evidence that they are much safer than normal cigs.
Apr
13
reviewed Excellent In biosynthesis of cysteine and methionine, where does the sulfur come from?
Apr
13
reviewed Excellent Does antibacterial soap work chemically?
Apr
13
reviewed Satisfactory In the lysogenic cycle, does the provirus split from the cell's main genetic material for replication?
Apr
13
reviewed Needs Improvement Bioinformatics : Drawbacks of using ORA(Overlap Analysis)
Apr
13
reviewed Satisfactory Evolution from Mating types to different sexes
Apr
13
reviewed Excellent What causes skewed lanes in a DNA gel electrophoresis experiment?
Apr
13
reviewed Needs Improvement eye myopia power changes with brightness
Apr
13
reviewed Satisfactory PCR enzyme units or concentration?
Apr
13
revised What is the beneficial function of IgE antibody?
typo
Apr
12
revised relative-rate of evolution
edited body
Apr
12
answered relative-rate of evolution
Apr
12
comment Does Science Say That We Should Die?
-1 because this answer is riddled with inaccuracies and plain old errors. 1) Apoptosis is not relevant to the death of individuals of multicellular species. 2) You don't even mention telomere shortening which is actually relevant 3) Cancer cells are not immortal because they ignore apoptotic signals, that's part of it but does not confer the ability to replicate indefinitely (telomeres again). 4) What does genetic drift have to do with anything? 5) How would an immortal creature spontaneously evolve? There would be no selection for mutations occurring during the individual's life.
Apr
12
revised Why do three nucleotides code for one amino acid? Why not 5 nucleotides?
deleted 6 characters in body; edited tags; edited title
Apr
12
answered Evolution: How could all useful traits evolve simultaneously?
Apr
11
comment Did the eugenics program in Nazi Germany have a measurable effect?
I really doubt that any effect would be visible in a single generation. We'd need data to back that up but I would be surprised if any difference is observable.
Apr
10
comment How the lungs clear themselves?
@Anixx of course you do, try going into a dusty room and breathing deeply, you will sneeze or cough.
Apr
9
answered Why are there ecosystems?
Apr
9
revised What makes teeth feel sticky after drinking Coca-Cola?
edited tags
Apr
9
revised Do people often blow out the air from their lungs a lot when living in the cold condition to keep their lungs warm?
edited tags