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

I’m doing some practice exam questions for biology, and i’m not sure how to do these 3 parts to the question.

What is a limitation of using a chemical formula, such as c6h1206, to represent a compound? the chemical formula does not show the types of elements that make up the compound. the chemical formula does not show how the atoms are connected to one another the chemical formula does not show the number of atoms of each element in a molecule. the chemical formula does not show the chemical symbols of the elements in the compound

Wich is not standing in the way of astronomers getting a good view of different star