genetics question

[Mike Cavanaugh]

Just want to make sure my Basic understanding of dominant genetics in ball pythons is correct. I realize that there is no way to predict exactly what you are going to get.... just humor me, and tell me if this sounds right.

So, If I am breeding a Male Spider ball python and a Female Normal ball python... and there are 8 eggs, because the normal has 2 normal genes, and the spider has both 1 normal and 1 spider gene... would the law of averages tell me that 2 of those eggs are likely to be spiders, and the other 6 would be normals without the spider gene at all?

Again, I know the eggs can all be norms, or all spiders or any other combination... but is my BASIC understanding of this dominant trait correct?

thanks,

[Brimstone111888]

No, if you breed a Spider x Normal you will get 50% spider 50% normals. So if you had 8 eggs "Theortically" you should get 4 spiders and 4 normals. Here is a punnet square:

n n

S Sn Sn

n nn nn

Sn = Spider
nn= normal

[Mike Cavanaugh]

No, if you breed a Spider x Normal you will get 50% spider 50% normals. So if you had 8 eggs "Theortically" you should get 4 spiders and 4 normals. Here is a punnet square:

n n

S Sn Sn

n nn nn

Sn = Spider
nn= normal

Thank you so much. punnet square just made everything "click" YOU ARE THE BEST!!!!!!!

THANK YOU!!!