What can cause new alleles to appear?
skin cells coded genes sperm and egg fuse hair cells the parent's sex cells lung cells male gametes reproduction
A B C D E F G H
Alleles arise by mutation.
the sex cells of a parent can cause new alleles to appear
What can cause new alleles to appear? (A) skin cells (B) coded genes (C) sperm and egg fuse (D) hair cells (E) the parent's sex cells (F) lung cells (G) male gametes (H) reproduction