Question

Mr. Smith is colorblind. His wife, Mrs. Smith, has normal color vision, but her father was color blind. If they have eight children 4 boys and 4 girls, how many of the boys would you expect to be colorblind? Girls?

HELP

Answer 1

So I would proceed into making a Punnett square. Women only are carrier towards colorblindness so there would be a very slim chance of them being colorblind. While males would not be affected at all. This is because the mother passed her X chromosome to the son and she doesn’t have the colorblind gene. So in conclusion 4 girls will be carriers while the males will not have colorblindess.