Fertilization Flashcards
the process of fusion of the spermatozoa with the mature
ovum.
fertilization
The common site of fertilization is in the
ampulla
ampulla is part of
the uterine tube
Ovum, following ovulation is picked by (Sucked in)
tubal fimbriae and is transported to the ampullary part.
Out of the hundreds of millions sperm deposited in vagina at single ejaculation, only ……. enter the tube while only …….reach the ovum
only thousand
capacitated spermatozoa, 300-500
Completion of the second meiotic division of the oocyte immediately follows resulting in the female….
pronucleus (23X) & 2nd polar body
At the same time the head of the spermetazoa separates from….
middle piece and tail and transforms into male pronucleus (23X or 23Y)
Male and Feamale pronucleus unite at…. and form….
the centre resulting in formation of zygote (46XX or 46XY)
zygote
(46XX or 46XY)
Sex of the child will depend on the….
the pattern of sex chromosome supplied by the sperm.