- Cdng thflc tinh IQ IQ = ^ ^ X
1. Xay dung ban do khai niem
- GV neu yeu cdu: Trinh bay phdn chuan bj ve xay dung ban dd khai niem.
- GV nhan xet, danh gia phdn chuan bj va phdn trinh bay cua nhdm. - GV gidi thieu ban dd khai niem vd vat chat va CO chd di truydn cap phan tfl de HS theo ddi va sua chfla.
Hogt dpng cda HS - HS van dung bai hgc
21 trong sinh hgc 10 dd trinh bay.
- Yeu cdu neu dugc: + Xac djnh chu de.
+ Chgn mdt so khai niem (kidn thflc) then chdt phan dnh chu dd dd.
+ Dung gach ndi cac khai niem vdi nhau, the hien mdi lien quan. - Dai dien nhdm trinh bay tren gidy Ao hoac vie't len bang.
- HS trinh bay tudn tu cac budc dd xay dung ban dd khai niem.
- Ldp theo doi, nhan xet va bd sung.
Npi dung
1. Xay dung ban do khai niem khai niem
Hogt dpng cda GV Hogt dpng cda HS Npi dung
- GV nhan xet va giup
HS hoan thien kidn thflc.
- HS tu sua chfla.
- Dai dien HS trinh bay he thd'ng kidn thflc tfl ban dd khdi niem -> ldp nhan xet, bd sung.
Dap an ban dd khai niem chu dd: Vat chdt va co chd di truyen cdp phan tfl.
Cac khai niem lien quan ADN, gen, ARN, prdtein tfnh trang, tu sao, sao ma...
1. Gen la mgt doan cua phan tfl ADN mang thdng tin ma boa mdt chudi pdlipeptit hay mdt phan tfl ARN.
2. Thdng tin ve trinh tu axit amin trong chudi pdlipeptit dugc ma hod tren gen dudi dang ma di truyen (Bd ba ma hda). 3. Thdng tin di truyen dugc truyen tfl me sang con dugc bieu hien ra tfnh trang.
4. ADN nhan ddi theo nguyen tdc bd sung va nguyen tdc ban bao toan. ARN dugc tdng hgp tren khudn mdu ADN theo nguyen tdc bd sung (sao ma).
5. Phan tfl ADN chfla nhidu gen quy dinh cac tfnh trang cua ca thd.
Hogt dpng cda GV Hogt dpng cda HS Npi dung
- GV dua cac chu dd de
HS xay dung ban dd khai niem.
VD: Vat chdt va ca chd di truydn cap td bao. Cac khai niem lien quan: NST, nguyen phan, giam phan, thu tinh...
- GV neu cau hdi: Hay giai thfch each phan loai bidn dj d so dd trang 100 SGK.
- HS thao luan nhdm thd'ng nha't each xay dung ban dd khdi niem theo chu dd.
- Dai dien nhdm trinh bay -> ldp nhan xet bd sung.
Giam phan
- HS quan sdt so dd. - Trao ddi trong nhdm thd'ng nha't y kidn tra ldi duoc:
6. Thdng tin di truydn cdt gidu trong gen dugc sao ma (ARN) va dugc giai ma (tdng hgp prdtein). Thd hien cdc tfnh trang cua co the.
Gen
ARN Protein Tinh trang