Question

Carol and Joseph have freckles and curly red hair. All of their children, except one, also have freckles and curly red hair. Their son, Sam, has the same curly red hair but not one freckle! How can a child get a chromosome that is totally different from the original chromosomes of both parents?
a. gene flow
b. genetic drift
c. crossing over
d. natural selection

Answer 1

crossing over ,over the generation results in this phenomenon

Answer 2

I think the correct answer from the choices listed above is option C. A child can get a chromosome that is totally different from the original chromosomes of both parents by crossing over. It is the exchange of genes between homologous chromosomes, resulting in a mixture of parental characteristics in offspring.