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May
21
comment What is the point at which abiogenesis is complete and evolution begins?
Yeah, that's it. Although even then I'd be wary of assuming that there is a single clear line dividing life from non-life, so the exact end point of abiogenesis will be ill-defined.
May
20
answered What is the point at which abiogenesis is complete and evolution begins?
Apr
17
awarded  Good Answer
Apr
1
awarded  Nice Answer
Mar
22
comment Why are fruits so large compared to their seeds?
@MarchHo: Okay, fair point. What I mean is that it's not just that they have smaller seeds it's that these seeds are, as you say, totally non-viable.
Mar
22
comment Why are fruits so large compared to their seeds?
Just to note, the Cavendish banana, like all other edible bananas doesn't just have small seeds, it is seedless. In fact, all banana plants (of the same variety of banana) are genetic clones of one another produced by vegetative reproduction rather than sexual reproduction.
Mar
10
comment Reasons why living fossils exist?
@Jay: I'm sorry but I don't understand what you're asking?
Mar
10
answered Reasons why living fossils exist?
Mar
5
comment Does DNA have the equivalent of IF-statements, WHILE loops, or function calls? How about GOTO?
Even in parallel programming languages, each statement in executed sequentially. It's just that there are multiple "threads" of execution going at the same time. DNA is neither data nor program. The analogy is totally inaccurate.
Mar
4
comment Does DNA have the equivalent of IF-statements, WHILE loops, or function calls? How about GOTO?
I'm not saying that DNA needs proteins to execute its functions; I'm saying DNA is fundamentally unlike computer code.
Mar
4
answered Does DNA have the equivalent of IF-statements, WHILE loops, or function calls? How about GOTO?
Mar
4
comment Does DNA have the equivalent of IF-statements, WHILE loops, or function calls? How about GOTO?
While your examples are clever I feel the analogy used here (DNA against computer code) is so very poor as to be misleading.
Feb
1
comment Why did life not evolve to use radio?
@DanDascalescu: (1) What do you mean there is no transmitter? Bats create the sound they listen for echoes of and (2) Bats' echolocation works by further evolution of the already-selected-for abilities to hear and make sounds.
Jan
16
awarded  Yearling
Dec
9
answered Long term storage of agarose-ethidium bromide gels that have already been cast
Dec
3
comment Why only female mammals have well developed mammary glands?
I addressed your first point in the second paragraph. Male investment is high in humans, it is not in mammals in general and the dimorphism in mammaries did not evolve in humans. As to your second point, it's certainly true that males invest in reproduction to similar levels to females but in the individual offspring the investment is higher in the female.
Dec
2
answered Why only female mammals have well developed mammary glands?
Dec
2
comment Why only female mammals have well developed mammary glands?
Incidentally, the XY system is not used in all mammals so there is a slight lack of generality here.
Dec
2
comment Why only female mammals have well developed mammary glands?
I think this answer, while of decent quality, does not actually address the question the OP is asking. This is the mechanics of how there is a difference not the reasons why there is a difference.
Dec
1
answered Simple Mendelian Genetics Question