Banana Ball Python (Baby)

Gene resides on a sex chromosome.

• The gene has not been definitively located, however based on Warren Booth’s work and the heritability pattern, it does appear that the gene is primarily located on the X chromosome (except when it “jumps” to the Y chromosome). 
• In practice, this leads to the following outcome when breeding Banana ball pythons:
• Females produce an equal sex ratio.
• Male Bananas produced by a female Banana are Female Makers.
• Male Bananas produced by a male Banana are Male Makers.
• If you have a Male Maker all Bananas and combos will be males while the rest of the clutch (non-Banana offspring) will be females.
• If you have a Female Maker all Bananas and combos will be females while the rest of the clutch (non-Banana offspring) will be males.
• However, without further test breeding, a Banana ball python can not be confirmed “female/male maker” as there are exceptions where you may produce a male from a female maker or a female from a male maker. Data made public averages this to occur around 3% of the time.