Hi, for this question I chose B and the correct answer is E. I don’t know how to rule out each option at all. Please somebody help me.
10
Which of the following could explain why the phenotype of a healthy female child may show differences from her healthy biological brother (apart from the gender)?
- Independent assortment after the formation of the female zygote
- Crossing over between a chromosome from the sperm and a chromosome from the egg
- Random alignment of homologous chromosomes at the equator of the cell during
metaphase I
A 1 only
B 1 and 2 only
C 2 and 3 only
D 2 only
E 3 only