Question

if in cell division dna not crosse each other the how multicellular organisms evolved from unicellular organisms ?​

Answer 1

Answer:

hello mate

good morning

Explanation:

a popular theory suggests that unicellular organisms ate one another to form multicellular organisms

so ,

that time may be a bacteria ate another Bacteria and another and inturn giving rise to multicellular organisms...

and in multicellular organisms,

there are trillions of cells which keep on dividing