{]XypÂ]mZ\w a\pjycnepw CXcPohnIfnepw

Poh\pÅ FÃm hkvXp¡fpw AhbpsS hÀ¤w \ne\nÀ¯p¶Xn\mbn {]XypÂ]mZ\w (Reproduction) \S¯nhcp¶p. Cu {]{Inb kky§fnepw P´p¡fnepw a\pjycnepw ZriyamWv. a\pjyhÀ¤hpw AhcpsS \ne\n¸n\pw ]ptcmKXn¡pw Bhiyamb CXcPohnIfpw þkky§fpw P´p¡fpwþ ChnsS A\pkyqXw \ne\n¡p¶Xn\pth­n {]IrXn kwhn[mbI\mb AÃmlp GÀs¸Sp¯nbn«pÅ Hcp kzm`mhnIamÀ¤amWnXv. AXn\mbn FÃmPohPme§fnepw Ah³ CWIsf krjvSn¨ncn¡p¶p. ""`qan apf¸n¡p¶ hkvXp¡fnepw a\pjycpsS kz´w hÀK ¯nepw AhcpsS Adnhn s]Sm¯ krjvSnhÀ¤§fnepw FÃm CWIsfbpw krjvSn¨h³ F{X hnip²³''! (hn.Jp. 36/36).

{]XypÂ]mZ\w c­phn[ap­v: ssewKnIw, AssewKnIw. c­p ssewKnItImi§Ä kwtbmPn¨v Hcp ]pXnb Pohnbp­mIp¶XmWv ssewKnI {]Xyp¸mZ\w. enwKtImi§fpsS kwtbmP\w IqSmsX hn`P\w, apIpf\w, ]p\cp¸¯n, ImbnI {]P\\w apXemb amÀK§fneqsS \S¡p¶ {]P\\amWv AssewKnI {]XypÂ]mZ\w. Aao_ apXemb GItImiPohnIÄ hn`Pn¨p ct­m c­n IqSpXtem PohnIfp­mIp¶p. C XmWv hn`P\ {]P\\w. ssl{U apXemb PohnIfpsS tZl¯n apgIÄ t]msebp­mIp¶ apIpf§Ä hfÀ¶p thÀs¸«p ]pXnb PohnIfmbn¯ocp¶p. CXmWv apIpf\{]P\\w. a®ncsb c­mbnapdn¨m c­p a®ncbp­mIp¶p. ¹t\dnb F¶ Pohnsb aq¶mbn apdn¨m Xe`mK¯p ]n³`mKhpw hmÂ`mK¯p Xe`mKhpw \Sp`mK¯p Xebpw hmepw apf¨v aq¶p ¹t\dnbIfmbn¯ocp¶p. CXmWp ]p\cp¸¯n. tdmkv sNSn, ac¨o\n, apcn§ apXembhbpsS X­p apdn¨p\«m ]pXnb sNSnIfp­mIp¶p. CXmWv ImbnI{]P\\w. CsXÃmw AssewKnI {]XypÂ]mZ\w Xs¶.

ssewKnI{]XypÂ]mZ\w \S¯p¶ PohnIÄ c­phn[ap­v. GIenwK PohnIÄ, D`benwKPohnIÄ (Unisexual, bisexual). HcpXcw enwKtImi§Ä am{Xw DÂ]mZn¸n¡p¶ a\pjy³, \mb, ]£n, aÕyw apXemb P´p¡fpw Icn¼\, PmXnacw XpS§nb kky§fpw GIenwKPohnIfnÂs¸Sp¶p. c­pXcw enwKtImi§fpw Htc Pohnbn Xs¶bp­mIp¶ a®nc, \mShnc XpS§nb P´p¡fpw sX§v, shÅcn apXemb kky§fpw D`benwKPohnIfnÂs¸Sp¶p.

ssewKnI{]XypÂ]mZ\w \S¯p¶ GIenwK PohnbmWtÃm a\pjy³. {]mb]qÀ¯ntbmsS kv{Xo]pcpj·mcn {]XypÂ]mZ\tijn kPohamIp¶p. ]pw_oPtImi§Ä (Sperms) ]pcpj·mcpsS Ccp hrjW§fnepw kv{XotImiamb AWvUw (Ovum) kv{XoIfpsS AWvUmib¯nepamWv DÂ]mZn¸n¡s¸Sp¶Xv. Hmtcm hrjW¯n\I¯pw \o­pNpcp­ kq£va§fmb \nch[n IpgepIfp­v. ChbmWv _oPmWpP\\ \mfnIIÄ. Ahbn DÂ]mZn¸n¡s¸Sp¶  _oP§Ä  _oPhmln\nbneqsS aq{X\mfnbnse¯p¶p. kv{XoIfpsS KÀ`mib¯n\ncphi§fnembn Hcp tPmSn AWvUmib§fp­v. _Zmw Ipcphnsâ BIrXnbnepÅ Cu AWvUmib§sf KÀ`mibhpambn _Ôn¸n¡p¶Xv AWvUhmln\nIfmWv. KÀ`mib¯nsâ c­p IhmS§Ä Ccphi§fnembn AWvU\mf§fpambn _Ôn¨ncn¡p¶p.  kv{XobpsS P\\thfbn AWvUmib¯n e£¡W¡n\v AWvU§fp­mbncn¡psa¦nepw {]mb]qÀ¯nbmIpt¼mÄ Ahbn A[nIhpw \in¨v Bbnc§fmbn Npcp§p¶p. Cu Bbnc¡W¡n\p {]mYanI AWvUtImi§fn kv{XobpsS PohnXIme¯v \m\qdn\pw Aªqdn\panS¡pÅ AWvU§Ä am {Xta ]qÀ®Zi {]m]n¡p¶pÅq. c­v AWvUmib§fn \n¶pw CShn«v Ccp]s¯«p Znhk¯n\Iw H¶v F¶ tXmXn ]qÀ®hfÀ¨ {]m]n¨ AWvUw

AWvUhmln\nbnte¡p {]thin¡p¶p. CXn\mWv AWvtUmÂkÀP\w(Ovul ation) F¶p]dbp¶Xv. kwtbmKkab¯v 5þ8 an.enäÀ ip¢w ]pd¯phcp¶p. Hcp {]mhiyw ]pd¯phcp¶ ip¢¯n 200 aney³ apX 500 aney³ hsc ]pcpj_oP§fp­mIpw. Cu _oPmWp¡sfÃmw AWvUs¯ e£yam¡n \o§p¶psh¦nepw AXnsem¶p am{XamWv AWvUhpambn kwKan¨p hnPbw hcn¡p¶Xv. aäpÅsXÃmw \miaSbp¶p.

_oPw Hcp an\p«n 3.5 anÃnaoäÀ thKXbn k©cn¨p KÀ`mib¯nsâ ASn`mK¯pÅ IhmS¯neqsS Hcp aWn¡qdn\Iw KÀ`mib¯nepw  ct­maqt¶m  aWn¡qdn\Iw AWvUhmln\nbnepsa¯p¶p. AWvUhmln\nbn AYhm AWvU\mf¯n sh¨mWv _oPk¦e\w (Fentilization) \S¡p¶Xv. At¸mÄ _oP¯nse \yq¢nbkpw A WvU¯nse \yq¢nbkpw X½n kwKan¨p knàmWvUw F¶ tImiw D­mhp¶p. Hcp anÃnaoädnsâ A©nsem¶pam{Xw hen¸apÅ kn àmWvUw XpSÀ¨bmbn hn`Pn¨p hf À¶v {`qWambn¯ocp¶p. {`qWw HcmgvN¡Iw KÀ`mib¯nse¯n AXnsâ DÄ`n¯nbnse kvXc¯n ]än¸nSn¨p hfcpIbpw sN¿p¶p. 280 Znhkw (40 BgvN) sIm­v {`qW¯nsâ hfÀ¨ ]qÀ¯nbmhpIbpw {]khw \S¡pIbpw sN¿p¶p.