1,564 reputation
312
bio website
location United States
age
visits member for 2 years, 11 months
seen 21 hours ago

Oct
23
comment Evolutionary Cell Structuring
Just to explicitly answer "Where are the instructions?", they are in the DNA of the cells (which tell them to secrete and respond to the morphogens that terdon speaks of). [And note terdon's point that this is just from studying cells as they exist here and now, and not related to how the cells got here.]
Oct
21
comment How to measure bacterial content
Few homes have a spectrophotometer, so this is not suitable approach "in home conditions" as was asked for.
Oct
1
comment Is evolution true as Darwin said?
The ring species is an excellent example of evolution of species. The two endpoint populations are essentially different species, and you can find the gradations between them in the ring around the globe. Remove the intermediate populations and all you have are two (related) species.
Oct
1
revised Is evolution true as Darwin said?
fix unintended "yes" to "no"
Sep
30
answered Organelles present in sieve tubes
Sep
22
revised What is this awesome plant, which can close its leaves when touched?
correct typo in name of plant
Sep
7
comment Why can't cell division happen the other way around?
Think about what you just asked.
Sep
4
comment Amount of Heterozygosity
@Bananach: Perhaps you should have a look at this question: Do apes and humans share 99% of DNA or 99% of genes? What is the difference?. If that isn't adequate, you might ask another question getting at the issue.
Aug
25
comment why is AUG the initiation codon?
DNA is a sea of nucleotides. How is a transcription enzyme going to know where to start transcribing?
Aug
22
answered Why does it hurt when you take sweets, if you have cavities in your teeth?
Aug
17
awarded  Organizer
Aug
17
revised Are human fetuses more likely to be male?
add tag sex-ratio
Aug
8
revised How can sex ratios remain Fisherian (1:1) in species where only the dominant male gets to mate
fix math
Aug
8
answered How can sex ratios remain Fisherian (1:1) in species where only the dominant male gets to mate
Jul
29
answered In theory, would it be possible to create an injection of Vitamins, Minerals, sugars etc so that eating was no longer necessary?
Jul
28
answered Why isn't a virus “alive”?
Jul
28
revised Why isn't a virus “alive”?
rmv tangental parenthetical comment, and many minor fixes.
Jul
28
suggested approved edit on Why isn't a virus “alive”?
Jul
28
comment Why isn't a virus “alive”?
One correction: by the suggested definition, mitochondria are alive since they have ribosomes. (See, e.g., Properties of human mitochondrial ribosomes).
Jul
4
answered Mitochondrial DNA and recombination