DNA + Microevolution+ Bayes =Macroevolution

[David Steele]

Why is it that so many talk only about mutation and
ignore crossover?

Crossover plays a more dramatic role in variation than mutation.

D.

[vhawk01]

[ QUOTE ]
Why is it that so many talk only about mutation and
ignore crossover?

Crossover plays a more dramatic role in variation than mutation.

D.

[/ QUOTE ]

I lump them into the same category. Also, chromosomal duplication, non-homologous recombination, so on. All of these are 'mutational' events, in that the product is different than either of the inputs.

[David Steele]

[ QUOTE ]
I lump them into the same category.

[/ QUOTE ]

Well it seems that many others don't and end up seeing much less opportunity for variation by ignoring these. They wonder how rare mutations can accomplish so much when it is really other variation doing most of the work.

D.