Natural Science Forum / Biology / Microbiology / November 2007

Morgan's fruit fly experiments used notation b/b+ vg/vg+ etc. rather
than the B/b (upper case/lower case) notation used in Mendel
experiments. Is the notation specific to a given organism or type of
test?  If so, is the Morgan b/b+ notation used elsewhere?

In reading an account of Watson/Crick's research, I initially had the
impression that Crick was the real brains and force behind the effort.
But I saw another text that indicated the opposite: that Watson was
the one who understood the X-Ray crystalography and initially proposed

i want to know how p.aeroginosa cause bone infection?

Hello, everyone. I am puzzled by a question. If I got a gene in
E.coli, how can I know in which operon it locate? And how can I fix
the mechanism by which its trascripition is regulated?
Thanks a lot in advance.

Dear Sir
I am working on  the contamination of Milk with Gram-negative
psychrotrophic spoilage bacteria and I should diagnose
and differentiate different species of this bacteria.

I'm looking to purchase reagents for molecular biology use, and have
come across the term ACS reagent grade several times. How is this
different from molecular biology grade?
Thanks,

In my lab we use hungate bottles only for the liquid anaerobic media and bi-
layer solid media. We have to do inoculations on solid meida only using
Petri dishes in the anaerobic jar supplemented with gas-packs or controlled
atmosphere anaerobic chamber. THere is a problem in the ...

I should say from the outset that I know practically nothing about
microbiology - I was just after a substance that fluoresces at visible
wavelengths, and is excited by light at round 589nm. A quick google
suggests that there's some stuff called Texas Red which does this, and

Dear Sir
I am working on  the contamination of Milk with Gram-negative
psychrotrophic spoilage bacteria and I should diagnose
and differentiate different species of this bacteria.

I left a damp towel in a plastic bag in my car's trunk a few
days ago.  I pulled it out today, it has black spots all over,
some kind of mold or something, gross.
Now I wonder, how does that stuff grow?  I mean, it needs

Maybe an easy one, but I couldn't find anywhere else to ask about
this:
Do chromatids in M-phase pair up to one centrosome, or does each
chromatid have its own? This is stated both ways in various texts.

Is the vaginal Candida albicans the same organism as the oral Candida
albicans?
Thank you.

I recent heard that old people dont really
need the flu shots anymore" any information on this. It seens logical
to be
true. they are past the age of acquiring

Margulis's theories on endosymbiosis make sense. But are there current
(or known) examples of bacteria that look like mitochondria, or that
are able to function in similar fashion?