Question

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

Answer 1

Answer:

Hey Buddy here's ur answer

The first evidence of multicellularity is from cyanobacteria-like organisms that lived 3–3.5 billion years ago. To reproduce, true multicellular organisms must solve the problem of regenerating a whole organism from germ cells (i.e., sperm and egg cells), an issue that is studied in evolutionary developmental biology.

One hypothesis is that it was predation that put selective pressure on single-celled organisms, causing them to become more complex