PATERNAL CONTRIBUTION TO EMBRYONIC DEATH.

摘要: Summary. This essay advances the theory that an unsuspectedly large part of embryonic death is attributable to genetic causes. The factors involved are not necessarily inherited by parents, indeed majority probably arise de novo in each parent generation and some likely definitive gametes. seeks account for nature unexplained fertility differences between males, idiogenic infertility, decline associated with age. It suggests a considerable unavoidable should be regarded as normal way eliminating unfit genotypes generation.