Which process of genetic recombination involves genes from both parents? crossing over independent assortment fertilization tetrad formation

The answer would be C. The process of fertilization is the fusion of the gametes for the development of a new organism. The process the fusion of the ovum from the mother and the sperm from the father. This is where both genes of the parents combine in development of a child.

It is called the medulla oblongata or people usually call it medulla. it is the lower half of the brain stem continuous with the spinal cord. 

Yes yes yes very good