3,084 reputation
729
bio website mattdmo.com
location near Boston
age 36
visits member for 2 years, 2 months
seen Aug 14 at 19:33

Long-time OSS user/admin, intermediate coder - I heart . Master of Science in Molecular Medicine, many years' experience in biotech working with antibodies and cell-based assays. Science and computer geek. Dad.


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Jun
22
comment What is the smallest known organism with a skeleton?
interesting, thanks!
Jun
22
comment What's the smallest organism that can produce voice?
How do you differentiate between an animal that makes sound and one that has a sound-producing organ? If a beetle makes a sound by rubbing its wings together, it has a sound-producing structure, does it not, even if that structure is not dedicated to only making sound?
Jun
22
comment What is the smallest known organism with a skeleton?
do you have a reference for this?
Jun
22
comment Cell volumes of the MDCK, COS1 and ECV standard cell lines?
I'm not aware of any definitive database of cell volumes, for primary cells or cell lines. The root problem, of course, is that cell lines vary from lab to lab in their growing conditions, media type, origin, and composition, passage number, method of splitting, etc. etc. Unlike the kilogram or the meter, there is no such thing as the "standard" COS or HeLa cell, as their characteristics can vary tremendously. All you can do is either scour the literature for reported values or measure your own cells by pelleting a known number and measuring their volume.
Jun
20
comment Carbon Monoxide and High-Oxygen-Affinity Varieties of Hemoglobin
Do you have references for your images and graphs?
Jun
18
comment Why do parasites sometimes kill their hosts?
This does not provide an answer to the question. To critique or request clarification from an author, leave a comment below their post - you can always comment on your own posts, and once you have sufficient reputation you will be able to comment on any post.
Jun
17
comment Simultaneously using both hands - How does that work?
Why can't the hemispheres coordinate? Even though control of muscles on one side of the body may primarily originate in the opposite hemisphere, inter-hemisphere communication and coordination is vital to proper functioning of the body.
Jun
12
comment What do I need to pay attention to when cultivating algae in a PBR?
Pabst Blue Ribbon?
Jun
5
comment Is the tomato a very very close relative of the pepper?
I think OP is referring to Capsicum sp., not black pepper...
Jun
5
comment Why are some chemical dangerous to aquatic environment only?
just a guess, but dissolved in water it may coat the gills and prevent proper oxygen/CO2 exchange...
Jun
4
comment Why are there no tree-like plants that grow in lakes?
Mangroves grow in the water...
Jun
4
comment Is it possible to combine live attenuated and non-live vaccines?
typically the manufacture and storage of live (attenuated) and inactive (killed, dead, kaput) vaccines is rather different, and the effective shelf lives can vary significantly. For example, inactive vaccines often have preservatives in them, which may be incompatible with live viruses. A killed vaccine may be stored at room temp, while an attenuated one may require refrigeration.
Jun
3
comment Drinkable liquids that dont contain water
Mercury is drinkable, but I wouldn't recommend it...
May
29
comment Implications of what the discovery of Naia means
As far as I can remember from skimming the published paper, it does provide support to the hypothesis that the first Americans probably migrated over a Bering Strait land bridge sometime during the last ice age. Remember, individual scientific findings rarely "prove" anything, they just support or refute a certain hypothesis (what a layman would call a "theory", a word which has a rather different meaning when used by scientists).
May
26
comment Breathing under water
@Superbest - I would imagine that great white sharks consume a lot of oxygen when they're hunting, and last time I saw one it was just slightly larger than I am :)
May
26
comment How are Maggots Sterilized (Disinfected)?
They are grown in the same way that "clean" mice that don't have any gut flora are grown - originally they came from the wild, were cleaned, then kept in specific conditions after that. The first couple generations may be iffy, but dirt isn't inheritable...
May
26
comment Genes, chromosomes, base pairs and the 23 pairs
The Wikipedia articles for chromosomes, genes, and DNA contain all the information you need, and are literally the first links of the respective Google searches for those words.
May
26
comment Genes, chromosomes, base pairs and the 23 pairs
Pet peeve of mine - chromosomes are not X-shaped! They only look like that at one particular point in mitosis, and not even at the point where they make karyotypes. Sorry, nothing wrong with your answer, I just had to vent :)
May
26
comment Meaning of “auto” in trans autophosphorylation?
OP may not see your comment if you don't @mention him... :/
May
12
comment What is a suicide plasmid?
Check out this page - it has a long discussion of suicide vectors, and from the note at the bottom it was adapted from a published source.