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  1. #1
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    Sex ratio from male maker banana male x banana female

    Male ball pythons have XY sex chromosomes, and females have XX sex chromosomes. Expected sex ratio is 1/2 males:1/2 females.

    X+ = X chromosome with the normal gene that corresponds to the banana gene.

    Y+ = Y chromosome with the normal gene that corresponds to the banana gene.

    Xb = X chromosome with the banana gene.

    Yb = Y chromosome with the banana gene.

    X+/Yb = male maker banana male

    Xb/X+ = banana female

    X+/Yb x Xb/X+ -->
    1/4 Xb/Yb = homozygous banana male (AKA super banana)
    1/4 X+/Yb = male maker banana male
    1/4 Xb/X+ = banana female
    1/4 X+/X+ = normal female

    These are expected results. As the X and Y chromosomes swap pieces occasionally, there may be a rare homozygous banana female (Xb/Xb) and normal male (X+/Y+).

  2. The Following 3 Users Say Thank You to paulh For This Useful Post:

    dr del (09-18-2018),mlededee (09-18-2018),Ronniex2 (09-27-2018)

  3. #2
    in evinco persecutus dr del's Avatar
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    Re: Sex ratio from male maker banana male x banana female

    Dang I'm glad you posted that - I still thought they had wz.
    Derek

    7 adult Royals (2.5), 1.0 COS Pastel, 1.0 Enchi, 1.1 Lesser platty Royal python, 1.1 Black pastel Royal python, 0.1 Blue eyed leucistic ( Super lesser), 0.1 Piebald Royal python, 1.0 Sinaloan milk snake 1.0 crested gecko and 1 bad case of ETS. no wife, no surprise.

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