A- gripping tail to grip trees and branches
Sexually because they are part of the animalia kingdom. Sexual reproduction allows genetically diversified offspring, but sexual reproduction requires two animals of the same species.
1:4 children will be albino.
If you make a Punnett square with Aa and Aa, you'll see that the ratios are:
AA:Aa:aa=1:2:1
so the ratio of aa out of the total is 1/(1+2+1)=1/4