5,126 reputation
937
bio website guizzetti.ca
location
age
visits member for 3 years, 1 month
seen 14 hours ago

May
24
comment Why aren't we allowed to refreeze previously thawed breastmilk in refrigerator?
Something to note is that the thaw and refreeze cycle is not just about texture, but there is real damage happening to the proteins that are present in the milk. All the good things that make breast milk useful for infants (growth factors, hormones, antibodies, etc) will be destroyed by freeze-thaws.
May
20
answered What cells don't have a primary cilium?
May
15
comment Why do our eyes close when we sleep?
Why should there be more? Sleeping causes a state of paralysis, so it's better if the eyelids remain closed than open. Not to mention enviromemtal light directly modulates sleep/wake cycles, arguing again for closed being the preferred state for sleeping.
May
15
comment Why do our eyes close when we sleep?
Can you explain that? The points I've raised are matters of physics and physiology.
May
14
revised Why do our eyes close when we sleep?
added 216 characters in body; added 120 characters in body
May
14
comment Exocytosis of mast cell secretory granules
I would say a complete answer warrants a literture review on the topic and you're not likely to get all the details here.
May
13
comment Gene perturbation, what is it used for, explain to computer scientists?
I'm not sure how you can explain it by microarray, since a microarray only gives a readout at a transcript level, and genetic purturbations can be applied down-stream at a protein level (say by expressing a mutant protein). Also, perturbation studies in vitro are quite diverse as terdon already mentioned. I would suggest reading literature for the types of questions you wish to answer, and see how they were addressed experimentally to better focus your question.
May
13
answered No bands show up in gel electrophoresis, not even marker
May
13
comment Why do our eyes close when we sleep?
Fragile corneas are a requirement for our vision. Thick corneas are much less fragile but then attenuates more light.
May
13
answered Why do our eyes close when we sleep?
May
13
reviewed Looks OK Why do our eyes close when we sleep?
May
13
revised Exocytosis of mast cell secretory granules
Expanded answer
May
13
comment Exocytosis of mast cell secretory granules
I've updated my response above.
May
12
revised Exocytosis of mast cell secretory granules
Fixed typo
May
12
answered Exocytosis of mast cell secretory granules
May
12
reviewed Close Advantages of bisexual reproduction over asexual one toward species promotion?
May
12
reviewed Close Membrane potential after exposure to glutamate
May
9
comment Signaling through G protein Coupled Receptors?
You can design such experiments. Do you know which receptor you're interested in? What have you learned from the literature about how GPCR signalling pathways are evaluated?
May
9
comment What actually are the blood groups for human being?
don't forget AB blood. :)
May
8
revised Why humans have the temperature they have?
Expanded explanation