twins came to your clinic during routine examination ,you found great change behavior between both of them this due to:
A) hereditary
B) environment. ***
C) maturation.
Human twins are of two basic types: monozygotic (or identical) twins resulting from a single ovum fertilized by a single sperm, and dizygotic (or fraternal) twins resulting from fertilization of two ova by two sperm.
It also follows that difference between monozygotic twins result from environmental differences whereas those between dizygotic twins result from differences in both heredity and environment.
Human twins are of two basic types: monozygotic (or identical) twins resulting from a single ovum fertilized by a single sperm, and dizygotic (or fraternal) twins resulting from fertilization of two ova by two sperm.
It also follows that difference between monozygotic twins result from environmental differences whereas those between dizygotic twins result from differences in both heredity and environment.
