Cap vo chong II₂ x II₃ sinh ra III₁ bi benh nen benh do gen lan quy dinh,cap vo chong II₂ va II₃ co kieu gen di hop quan sat pha he ta thay rang gen gay benh nam tren NST thuong.

II₂ va II₃ co kieu gen di hop nen III₂ co ti le kieu gen:2/3Aa,1/3AA

Vay xac suat de nguoi III₂ mang gen gay benh la 2/3=0,67 chon C

Ta co:

-So ca the khong sung o cuu duc=0,81x(1000/2)=405,so ca the khong sung o cuu cai=(0,18+0,81)x(1000/2)=495

vay tong so ca the khong sung =405+495=900

Suy ra (1) sai

-So ca the co sung o cuu duc =(0,01+0,18)x(1000/2)=95 suy ra (2) sai

-So ca the cuu di hop co sung =0,18x(1000/2)=90

tong so ca the cuu co sung =1000-900=100

ti le ca the cuu di hop trong tong so ca the co sung cua quan the =(90/100)*100=90% suy ra (3) dung

-Tu cau (1) suy ra cau (4) sai

Vay so phat bieu dung la 1

Ta co:

Den : trang=3:1 nen den troi hoan toan so voi trang quy uoc A-den,a-trang

Ngan : dai=3:1 nen ngan troi hoan toan so voi dai quy uoc B-ngan,b-dai

F1 co ti le xap xi 9:3:3:1 nen P di hop hai cap gen va co kieu gen AaBb

So do lai:

P: AaBb(den ngan) x AaBb(den ngan)

Gp:1/4AB,1/4Ab 1/4AB,1/4Ab

1/4aB,1/4ab 1/4aB,1/4ab

F1:1/16AABB,2/16AABb,1/16AAbb

2/16AaBB,4/16AaBb,2/16Aabb

1/16aaBB,2/16aaBb,1/16aabb

-Tan so kieu gen dong hop lan gap 2 lan di hop ta co:q²=2x2pq=4q(1-q) tuong duong -5q²+4q=0 vay q=0,8 ; p=0,2

-Tan so kieu gen dong hop lan gap 6 lan di hop ta co:q²=6x2pq=12q(1-q) tuong duong -13q²+12q=0 vay q=0,923 ;p=0,077

a)HT3 ta co:2^kx2n=512 suy ra 2^k=64

Goi x la so te bao con cua hop tu 1 so te bao con cua hop tu 2 la 4x ta co

x*2n+4x*2n=(832-512)=320 suy ra x=8

Vay so te bao con cac hop tu 1,2,3 lan luot la:8,32,64

b)so lan NP cua cac hop tu la:

HT1:2^k=8 suy ra k=3

HT2:2^k=32 suy ra k=5

HT3:2^k=64 suy ra k=6

-P di hop 2 cap gen lai phan tich thu dc f1 :than cao:than thap=1:3 nen chieu cao cay chiu su chi phoi cua quy luat tuong tac cua cac gen khong alen kieu bo tro 9:7 (A-B-than cao con lai than thap) vi vay gen B va D phai nam tren cac cap NST tuong dong khac nhau.

-Nhan thay cay than cao A-B- chiem ti le nho nen giao tu AB la giao tu hoan vi ne cay M co KG di hop tu cheo Ab/aBDd chon cau D

F2 co 16 to hop giao tu trong do long trang chi xuat hien o con duc nen tinh trang mau long di truyen tuan theo quy luat tuong tac bo sung do hai cap gen quy dinh trong do co mot cap nam tren NST gioi tinh tren X khong co alen tuong ung tren Y.Quy uoc gen quy dinh mau long do hai gen A,B quy dinh trong do (A-B-) long den,(A-bb va aaB- )long vang,(aabb) long trang.XX-cai,XY-duc.co hai truong hop gen A nam tren NST thuong ,gen B nam tren NST gioi tinh va nguoc lai

-Truong hop gen A nam tren NST thuong

cac con long den o F2 giao phoi voi nhau;

Me:(1/6AAX^BX^B:1/6AAX^BX^b:2/6AaX^BX^B:2/6AaX^BX^b) tao ra giao tu:6/12AX^B,2/12AX^b,3/12aX^B,1/12aX^b

^Bo:

(1/3AAX^B:2/3AaX^BY) tao ra giao tu:2/6AX^B,2/6AY,1/6aX^B,1/6aY

Vay ti le long vang thu dc o F3 l=2/6*2/12+2/6*1/12+1/6*3/12+1/6*1/12+1/6*2/12+1/6*3/12=15/72

2)Luc lap va ti the

4)Pr xuyen mang va Pr bam mang

5)Luu tru thong tin di truyen va dieu khien moi hoat dong song cua te bao

6)A-hoi chung dao

B-hoi chung Tocno

8)Cong gop,bo sung,at che

10)ket qua cua qua trinh sinh tinh la tao ra 4 giao tu, cua te bao sinh trung tao ra 1 giao tu va 3 te bao the cuc

-Sinh truong la su tang ve kich thuoc khoi luong te bao,co quan va co the cua sinh vat theo thoi gian.

-Phat trien la su bien doi ve hinh thai va sinh li tu hop tu den khi truong thanh

-Moi quan he:

+Sinh truong tao tien de cho phat trien va la thanh phan cua phat trien

+Phat trien thuc day sinh truong

+Toc do sinh truong dien ra khong dong deu o cac giai doan phat trien khac nhau

Thanh phan cau tao axit nucleic cua:

-ADN gom:duong deoxiriboza(C5H10O4),nhom photphat,1 bazo nito(A,T,G,X)

-ARN gom:duong ribozo(C5H10O5), nhom photphat,1 bazo nito(A,U,G,X)