Maniyin Mace Budurwa da Bayanin Sa

Maniyin Mace Budurwa da Bayanin Sa

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Tag: maniyin mace

Menene bambanci tsakanin maniyyi namiji da mace?

 

Ina tsammanin kuna tambaya game da gaskiyar cewa maniyyi yana ƙayyade abin da jima’i na yaron zai kasance.

 

 

 

 

Muna da kwayoyin halitta 46: 23 nau’i-nau’i na 2. Ka yi tunanin cewa kamar yadda Gene Pair One yana da sashi A da B. Gene Pair Two yana da sashi A da B. Har zuwa Gene Pair 23.

 

 

 

 

Wannan nau’in jinsin na ƙarshe shine inda aka ƙayyade jinsi: maza suna da XY kuma mata suna da XX. Wannan gaskiya ne ga kusan kowa. Akwai ‘yan keɓantawa, amma gabaɗaya, haka yake aiki.

 

 

 

 

Kwai da maniyyi suna da kwayoyin halitta 23 kacal. RABI ne na kwayoyin halittar mai wannan maniyyi ko wannan kwai. Wannan yana da ma’ana, domin lokacin da suka haɗu, kuna sake samun kwayoyin halitta 46, wanda kwayar halitta ta ƙarshe ta ƙayyade jima’i.

 

 

 

 

Kowane kwai da kowane maniyyi ana yin su ne da kayyade: wannan tantanin halitta yana ɗaukar 1A, 2B, 3A, 4A, 5B da dai sauransu.

 

 

 

 

Halin halittar ƙarshe kuma yana rarrabuwa, kamar kowane ɗayan. A cikin kwayoyin halittar kwai, kwayar halitta ta karshe ko da yaushe (banda abubuwan da na ambata a sama) zai zama X, saboda mace tana da X guda biyu a can. A cikin kwayar halitta, yana iya zama X, ko Y, saboda namiji yana da X da Y a can.

 

 

 

 

Idan maniyyi tare da X ya yi nasara a tseren kwayar kwai, sakamakon zai zama yarinya: jinsin karshe zai zama XX.

 

 

 

 

Idan maniyyi tare da Y ya ci nasara a tseren, sakamakon zai zama yaro: jinsin karshe zai zama XY.