Dalilai na ci gaba da su ma'anar

Juyin Halitta - shi ne mai nazarin halittu factor. Yana shafi dukan canje-canje a cikin tsarin na rayayyun kwayoyin halitta, wanda ya faru a lokacin rayuwar duniya tamu. All manifestations na ci gaba faruwa a ƙarƙashin rinjayar wasu dalilai. Abin da mãsu suna da mafi tasiri, da kuma yadda yake bayyana kanta? Babban dalilai na juyin halitta.

1. Daya daga cikinsu shi ne gadar hali. Yana da ikon kwafa daga tsara zuwa tsara na wasu daga cikin kaddarorin da jiki da shafi metabolism ko wasu siffofin na mutum cin matsayin dukan. Wannan jagora juyin factor a kudi na kai-kwafi genes raka'a wanda tara a cikin tsarin da cell tsakiya, wato a chromosomes da cytoplasm. Wadannan kwayoyin halittu suke da muhimmanci a tabbatar da dawwamar da jinsunan bambancin da siffofin daban-daban na rayuwa. Gadar hali yana dauke da babban factor, wanda shine tushe na ci gaba da dukan yanayi.

2. Bambancin da bambanci da farko factor, shi ne bayyanuwar halittu halaye daban-daban da kuma Properties cewa suna zaman kansu na zumunta. Wannan dukiya ne halayyar dukan mutane. An raba da wadannan Categories: da hereditary da kuma wadanda ba hereditary, kungiyar da mutum, directed da undirected, ingantaccen da kuma gwada yawa. Halitta bambancin ne saboda abin da maye gurbi da kuma wadanda ba hereditary - rinjayar da waje muhalli. Dalilai na juyin halitta, gadar hali da kuma bambancin za a iya kira hukunci a cikin wannan tsari.

3. A gwagwarmayar zama. Yana ma'anar dangantaka tsakanin rayayyun kwayoyin halitta da kuma tasiri a kan abiotic fasali. A sakamakon wannan tsari, kwayoyin da suke da rauni, aka kashe. Kasance masu samun mafi girma viability.

4. Halitta selection. Yana da sakamakon da suka gabata dalilai. Wannan tsari, a cikin abin da gwagwarmayar rayuwa ta daidaikun mutane. Jigon zabin yanayi shine don maida alƙarya. A sakamakon haka, akwai sabon iri rayayyun kwayoyin halitta. Yana za a iya kira daya daga cikin Motors juyin halitta. Yadda wasu dalilai na ci gaba, shi aka bude Charles Darwin.

5. karbuwa. Wannan shi ne gaskiya musamman jiki abun da ke ciki, da launi, hali, da hanyoyin da tarbiyyar 'ya'yansu, da kuma yafi. Wadannan dalilai sosai, saboda haka suna ba tukuna cikakken gane.

6. Yawan tãguwar ruwa. Jigon wannan factor ne zuwa wasu hawa da sauka a cikin yawan wasu iri rayayyun kwayoyin halitta. A sakamakon haka, a rare jinsuna iya zama mafi yawa, da kuma mataimakin versa.

7. rufi. Yana yakan haifar da zargin shingen da yaduwar rayayyun kwayoyin halitta da sakandamansu. Domin da ya faru na iya zama daban-daban dalilai: .. Mechanical, muhalli, yankin, morphological, kwayoyin, da dai sauransu Daya daga cikin manyan dalilan da karuwa ne sau da yawa bambanci tsakanin kusa a baya kwayoyin.

8. Maye gurbi. Wadannan muhalli dalilai na iya faruwa ta halitta, ko mutum ya fasali. A lokacin da yin canje-canje ga kwayoyin halitta da kwayoyin da ke faruwa mutational canje-canje. Wannan factor shi ne tushen kayyade canje-canje.

9. gantali genes. Akwai yanayi inda yawan size ne sharply rage. Wannan na iya faruwa a ƙarƙashin rinjayar daban-daban yanayi (ruwan tsufana, wuta). Sauran wakilan rayayyun kwayoyin halitta ne da niyyar kashi a cikin samuwar sabuwar alƙarya. A sakamakon haka, shi iya bace wasu cututtuka irin wannan da kuma bayyana sabon.

Da cigaban dan Adam ya wuce ya kama hanyarsa. Amma cikin abubuwan da juyin halittar mutum ne kamar irin waɗanda aka bayyana a sama.