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Bio F5 Bab 12.3

Mutasi

QuestionAnswer
Apakah maksud Mutasi???? Perubahan scra spontan&rawak pd kandungan genetik,iaitu DNA dlm sel organisma
Apakah itu mutagen?? Bahan yg dpt mnybbkn mutasi/mninggikn kadar mutasi pd aras yg brbahaya
Apakah itu Mutan? Bahan genetik baharu yg dihasilkn oleh mutasi @!Mutan boleh wujud dlm keadaan gen mutan,sel mutan,organel mutan&individu mutan
Senaraikan jenis2 mutagen yang ada 1>Agen fizikal-Sinar UV dri matahari,Sinar pngionan spt Sinar-X,sinar alfa&sinar beta 2>Agen kimia-Karsinogen spt asap rokok-Bahan pngawet makanan,Formaldehid&Benzena 3>Agen biologi-Virus&Bakteria
Jelaskan Mutasi Gen Apbila trdpt prubahn dlm urutn bes nukleotida dlm ssuatu gen~Mutasi titik~Prubahn ini mngubah kod genetik yg diguna bg sntesis asid amino~Struktur protein brubah&protein bharu X dpt brfungsi~Mutasi Gen brlaku mlalui pnggantian bes,plenyapan bes&sisipanbes
Apakah pnyakit yng datang drpd Mutasi Gen??? 1)Talasemia (Pelenyapan bes) 2)Sistik fibrosis (Sisipan bes) 3)Anemia sel sabit (Pnggantian bes) 4)Albinisme 5)Hemofilia
Huraikan scra ringkas apakah itu Anemia Sel Sabit -Mutas gen yg brtnggungjwb ke ats sintesis hemoglobin~hemoglobin pd sel drh merah mpunyai bntuk sabit~pmbentukn sel drh merah yg X smpurna~Sbhagian normal mankala sbhagian lain brbentuk sabit
Terangkan albinisme Individu yg mngalami albinisme=Albino~brlaku akibat gen yg brtnggungjwb utk mnghasilkn pigmen kulit,rambut&mata mngalami mutasi~Oleh itu pigmen ini X dihasilkn dlm albino
Created by: Enbos
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