leonardo

3,816 reputation

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bio	website	guizzetti.ca
	location	London, Ontario
	age	26
visits	member for	1 year, 2 months
	seen	2 days ago
stats	profile views	27

I'm Leo and I'm passionately involved in biology and running, and interested in programming and cooking.

	3,816 reputation	bio	website	guizzetti.ca	visits	member for	1 year, 2 months
528 badges		location	London, Ontario		seen	2 days ago

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Jan 2	comment	Simulating Cell differentiation There is plenty of literature that shows information is stored in at least 3 major places. DNA is the lowest level of information (raw 'bits' of storage), then you have epigenetic modifications which can modulate the level of DNA accessibility and expresion (which are still not fully understood how these are inherited). The last important information encoding is at the level of protein and can be as trivial as a protein switched on/off, or embodied in the behaviour of a whole network of protein interactions. We are just starting to grasp the latter.
Jan 2	comment	Simulating Cell differentiation Basically to answer this question, people are devoting entire careers towards this goal. Even a simplified simulation can quickly become a PhD thesis if you so choose. I will assume you want a simulation which takes into account some level of biochemistry since the simple calculation of dividing cells is trivial. What you should decide on up front is to what depth of information do you want to simulate (eg, can you make some simplifications to make your model less realistic but more manageable)?
Dec 31	answered	Is every part of a virus important for replication?
Dec 30	comment	Bradford Protein Assay Hello there. This looks like a homework problem. Before one of us helps you, what have you tried so far?
Dec 30	revised	Bradford Protein Assay deleted 14 characters in body; edited tags; edited title
Dec 29	revised	Why does not the host produce any immune response to antiserum antibodies? deleted 31 characters in body
Dec 28	revised	Can a new Y-chromosome be created? edited title
Dec 28	comment	Are serotonin levels in humans affected by light? No, but if you give me your email I can send you a PDF.
Dec 27	comment	Does body temperature affect human lifespan? This phenomena is observed in simple organisms (flies, E. coli, yeast, etc) but I suspect would be acutely fatal in humans and large animals because of the need to maintain chemical reaction rates and proper temperature for protein folding.
Dec 27	revised	Does body temperature affect human lifespan? edited title
Dec 27	reviewed	Close Can viral proteins cause infection?
Dec 26	comment	Functionality of vitamin A, Bx, C, D, E, K as used in cosmetics for the skin? I think this question is too broad to encompass all known vitamins.
Dec 25	reviewed	Reviewed Why do cockroaches flip over when they die?
Dec 25	revised	If re-boiling does not curdle the milk, can that be taken as an indicator that the milk hasn't developed the bacteria (and their toxins)? edited tags
Dec 25	comment	If re-boiling does not curdle the milk, can that be taken as an indicator that the milk hasn't developed the bacteria (and their toxins)? Doesn't separation refer to the fat separating from the water component? When protein is removed, I've heard it referred to as denatured or "burnt" or curdled. I would think you can re-pasturize the milk to sterilize it, but if it was previously contaminated, you would not be able to remove bacterial toxins. One toxin that may remain would be endotoxin which causes illness in humans and is only denatured at temperatures in excess of 300ºC.
Dec 25	answered	Are serotonin levels in humans affected by light?
Dec 25	answered	Why Can't A Male Mule Have Offspring?
Dec 25	answered	Can gelatine digestion make blood more thick?
Dec 25	comment	Evolution in 37 years, is it possible? You can also look to the work on heat-shock protein 90 (Hsp90) and specifically the scientist Susan Lindquist for human evolution within one's lifetime.
Dec 24	revised	Why are there N's after Sanger sequencing? Fixed capitalization.