31.9k views
5 votes
How do some cells become brain cells and other become skin cells, when the dna in all exactly the same. in other words, if the instructions are exactly the same, how does one cell be cell and another a skin cell?

User Vinothvs
by
8.7k points

1 Answer

4 votes
Only some genes are used and active. The genes that are active in each cell is to do that specific job.
User Chauskin Rodion
by
8.4k points