Question

Can two curly-haired parents have a straight-haired child?

Answer 1

Trait inheritance

1. Two curly-haired parents may or may not produce a straight-haired child.
2. Two curly-haired parents that belong to a generation that never had curly hairs will produce offspring with curly hairs.
3. A straight-haired offspring can be produced only if the grandfather or great-great-grandfather or any previous generation of either parent had someone with straight hair.
4. This means that the parent had genes for straight hair which was not expressed in them but showed its expression in its offspring.
5. It completely depends on the type of genes that are present in the parents.
6. In the case of mixed parents where one has straight hair and another has curly hair then the dominance of genes will decide the fate of the offspring.