The answer would be Activational <span />
Meiosis is needed for sexual reproduction, here chromosome number is halved, it provides for mixing up of genes.
mitosis is needed for growth, repair, replacement, asexual reproduction.
it maintains same chromosome number
C Skin Cancer! uv rays are very bad
Hey there!
The sides of DNA have rails, or the sides of them that keep them together- and what's amazing is you can't even see it.
They're made of sugar (deoxyribose) and phosphate molecules. They alternate, so sugar, phosphate and so on.
Hope this helps!