Answer:
Usually there should only be 4 squares, but I SHALL HELP YOU
Step-by-step explanation:
(You may know this)
For Baby Smiley to have curly hair, both of her parents would have to have heterozygous for straight hair. So Baby Smiley has a 1 in 4 chance/ 25% chance of curly hair.
so this should be the answer:
S S s
s