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10h
comment Heterozygosity and overdominance
Am taking another stab at this. I think that derivations in the refs are simpler and overall it's an interesting question.
1d
comment Is there a name for this principle in biological contexts?
Max. parsimony is essentially Occam's razor. Maybe that's the best we can do.
Apr
15
comment Heterozygosity under genetic drift
My bad. It was just a cite for the variance. Sorry.
Apr
15
comment Can oil be used instead of water in preparing wet mounts for microscopy?
One thing is that the slide must be viewed quickly, otherwise spores tend to bunch up adhere to other structures. FWIW.
Apr
12
comment Heterozygosity under genetic drift
@Remi.b: If Var(x)= E(x(x-1)+E(x)-E(x)^2 = E(x(x-1)) + E(x)(1-E(x)) then -E(x(x-1)) = E(x(1-x))= E(x)(1-E(x)) - Var(x). See, e.g., math.ubc.ca/~feldman/m302/binomial.pdf – daniel 11 mins ago
Apr
11
comment Could alpha-numeric taxonomy of fungi make things simpler?
Actually I think I was talking about numerical taxonomy in the context of fungi but this answer was useful. Thanks.
Apr
11
comment Can oil be used instead of water in preparing wet mounts for microscopy?
Have you looked at a mold under the microscope using vegetable or mineral oil?
Apr
5
comment Advantages of pain sensation?
+1 but we could imagine a world in which a much higher threshold (lower sensitivity) was an advantage. You agree that there is a a range--do we know anything about the distribution? Has it been quantized? Does it change in response to selective pressures?
Mar
23
comment Reformulation of Hamiton's rule
Interesting question but since B and C basically strip the idea of a lot of mathematical content, isn't it possible that the first use was, say, in a graduate text for non-mathematicians to give a sort of quick idea? That would be hard to track down I bet.
Mar
14
comment Perception of distant lights without glasses
dd3's suggestion makes sense to me but I wonder if you could add a short paragraph to explain the 'structure' a little more?
Mar
9
comment How is a stem-cell induced to assimilate a knock-in DNA construct?
@MattDMo: That's the one, yes.
Mar
9
comment How is a stem-cell induced to assimilate a knock-in DNA construct?
@MattDMo: If I am correct about the injection into blast cells, my question is about what happens before that.
Jul
10
comment Why do many fruit trees have five-petaled flowers?
This was a in interesting and entertaining article, thank you. It is true that many more flowers than those mentioned in the first answer or my question have 5 petals.
May
18
comment Has medical progress stopped human evolution?
It doesn't sound like there is a testable hypothesis in any of this. Do you have a cite or two?
May
18
comment Has medical progress stopped human evolution?
Women are getting more attractive?! Could you please elaborate?
Apr
30
comment Why do many fruit trees have five-petaled flowers?
Thanks, I didn't realize this.
Mar
3
comment Formation of ammonia from air and moisture
Yes, no mistake about the ammonia. This makes perfect sense. Long distance cycling with little to eat, intense humidity and heat. Thanks.
Jan
12
comment Cooking with sawdust
Was hoping for something more particular, but +1 and will accept after decent interval if nothing appears.
Nov
3
comment Diet of free-range herbivores
As a fraction of diet it must be low, yes.
Sep
7
comment Mutation-immunity in Luria-Delbruck experiment
Nice find and surprising (to me). Thanks.