Hmmmm... I was thinking today

[Auratus]

Well, my mom and my cousin were watching my male and female flirt together. I have them in a split tank. And my cousin asked "Why do the males have long fins and the females have short?" Then went on to compair them to peacocks and their drab little female peahens. It would make sense that males have them to impress females.
But then I thought, well in the wild they all have short fins. So over all the years that man has made longer finned males and more colors why hasn't anyone made long finned females, or why haven't the females also came out with long fins and more color? I think this is a hard question to answer unless someone knows a lot about genetics and such but I would like to know.

 

[jacblades]

a long shot, but... mutations are random. i guess it randomly picked the male...

 

[Sorrell]

With humans there are a lot of genes that are specific to the Y chromosome, so females (XX) may carry the gene, but it wil only be expressed in males (XY) I don't know if this is the same with bettas, but it kind of makes sense.

 

[SConrad]

a guess:
Males chromosomes are XY and females are XX so the trait for long fins may only be carried on the Y chromosome therefor cannot be passed on to females

now i know humans have XY and XX chromosonal makeup but im not even sure if the same goes for bettas...

 

[Sorrell]

Do I hear an echo?

 

[jacblades]

some people dont read all of the posts before posting