Question

Choose INCORRECT statements: A) Fraternal twins are formed from divided zygote
B) During cleavage, cell division occurs without cell growth
C) During cleavage, newly formed cells start to grow
D) Zygote is a single-celled embryo
E) Fertilization is the stage of embryonic development
F) Formation of three germ layers occur at the end of gastrulation
G) Embryo in blastula stage has two cell layers
H) Fertilization is the process when sperm and egg fuse
Identical twins are:
A) Generally different in gender
B) Generally look different
C) Develop from one pair of male and female gametes
D) Develop from two pairs of male and female gametes
E) Generally look alike each other
F) Can be a mirror image of each other
G) Always have birthmarks in opposite parts of their bodies
H) Always have birthmarks in same place of their bodies