Mene ne nauyin sassan jima'i da namiji?

Kwayoyin jinsi na mutum, wani lokaci ana kiran su, suna daya daga cikin kwatance na bambancin tantanin halitta. Su na da ƙwarewa wajen yin ayyuka masu banbanci na musamman, wanda ya ƙayyade tsarin su gaba daya. Yi la'akari da waɗannan kwayoyin halitta daki-daki, da kuma cikakkun bayanai game da abin da ayyuka na jinsin namiji da na mace.

Fasali na tsarin gamete

Kwayoyin jima'i, idan aka kwatanta da saba, damuwa, suna da yawa bambance-bambance. Mafi mahimmancin waɗannan shine haɗin ɓoye na chromosomes, wanda ke tsaye a cikin kwayoyin jima'i da kansu. Wannan yana tabbatar da haifuwa a cikin zygote na wani tsari na diploid na chromosomes ga kwayoyin, wato. rabi na mahaifiyar, rabin iyayen.

Har ila yau, abubuwan da suka dace sun bambanta daga wasu kwayoyin halitta ta hanyar dangantakar dake tsakanin tsakiya da cytoplasm. Bugu da ƙari, a cikin spermatozoa ya fi girma a cikin oocytes. Wannan shi ne mahimmanci saboda gaskiyar cewa a cikin spermatozoa adadin cytoplasm ƙananan ne, idan aka kwatanta da ƙwayar, wanda ya ƙunshi babban adadin shi tare da abubuwan gina jiki don ci gaban amfrayo.

Bugu da ƙari, ba kamar ƙwayoyin jiki ba, ɗakunan jima'i suna nuna wani matakin ƙananan matakai na rayuwa.

Mene ne ayyukan namiji jima'i?

Babban kuma, watakila, aikin kawai na spermatozoa, shi ne haifa. Sperm, hadu tare da kwai, gabatar da su tare da tsarin haɓo na chromosomes, wanda ya zama dole don ci gaban amfrayo.

Hakanan zaka iya cewa shi ne jima'i namiji wanda ya yanke jima'i game da jaririn nan gaba.

Mene ne ayyukan jima'i na jima'i?

Idan aka kwatanta da namiji na jima'i, wanda ayyukansa ya ƙunshi kawai haɗuwa da kwai da kuma samar da kwayoyin halitta zuwa gare ta, ƙwayoyin mace na haihuwa suna taka muhimmiyar rawa wajen tsarawa.

Saboda haka, shine kwai wanda yake bada tayin tare da abubuwan gina jiki a nan gaba, aiwatar da aikin trophic, baya, gwargwadon kwai kafin kafawar zygote kuma yayi aikin karewa.