Flávio Freitas wrote:
> Valeu! Sempre achei que era obrigatorio ter o mesmo numero para
> ter a remota possibilidade de haver cruzamento.

Nao, basta ter uma polpuda conta bancaria, carro importado e etc..

> vou dormir mais culto hoje. ;-)
> 
> 
> On 3/22/06, Gustavo Molina <[EMAIL PROTECTED]> wrote:
> 
>>Hello Flávio,
>>
>>Wednesday, March 22, 2006, 3:44:50 PM, you wrote:
>>
>>
>>>nao da. Nao tem o mesmo numero de cromossomos.
>>>Os gatos tem 19 pares e os ratos tem 21 pares.
>>>Para haver cruzamento, no minimo, deveriam ter o mesmo numero.
>>
>>Nem  sempre uma diferença no número de cromossomos resulta em
>>impossibilidade de
>>cruzamento.
>>
>>Por  exemplo: cavalos domesticados têm 32 pares de cromossomos. Jumentos
>>têm 31.
>>Do  cruzamento,  nascem  burros  ou  mulas  (depende do sexo), com 31,5
>>pares de
>>cromossomos. Sim. Um par fica incompleto.
>>
>>Zebras selvagens da montanha têm 16 pares. Uma especie de cavalo selvagem
>>(Equus
>>przewalski poliakov) tem 33 pares. No entanto, podem cruzar e gerar crias.
>>
>>Cavalos  selvagens  (33 pares) podem cruzar com cavalos domesticados (32
>>pares),
>>gerando uma cria com 32.5 e que é fértil.
>>
>>Se quiser ler mais a respeito,
>>
>>http://www.madsci.org/posts/archives/may2001/989331026.Ev.r.html
>>
>>
>>---
>>Gustavo Molina          mailto:[EMAIL PROTECTED]
>>
>>
>>
>>---
>>
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