A trait can also be called a/an

Amutagen is 1: a living thing that has undergone a mutation. 2: an agent that causes a mutation in dna. 3: a mutation that has affected one gene. 4: a chemical that can poison living cells.

Surrounded by microtubules, located near the nucleus. (don't try to google it) (give answer only if u know)

Moving down the ramp from 6 meters to