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trBND
rnANn pno
THANGLTyEN
PHoNG
<sub>GrAo_UggJA EAo </sub>
<sub>rAo</sub>
on
ciriNH
rHtrc
r(Y THr
cHgNHec
srtlH
cr6r
Lop
s
NnT
hgc20t7
- 2018
ivtON:
srNH
Hoc
Thdi gian ldm bdi: 150 phrit, <sub>kh6ng ke </sub><sub>thdi </sub><sub>gian </sub><sub>giao </sub><sub>d€</sub>
Ciu
I
(4,0 di€m)
a) Hdy ttritit tct5 thf nghiQm dO chrmg minh thdnh phAn h6a hgc cria xuong.
p) Ciai thich nguydn nhdn hiQn tucrng "chuQt
rft"
khi
choi the thao.
Ciu
2
(4,0 di€m)
a)
Axit
<sub>nuclCic dugc t6ng hqp theo </sub>
<sub>nhtng </sub>
<sub>nguyOn </sub>
<sub>tfc </sub>
<sub>ndo?</sub>
b) MOt gen nhdn d6i m6t sO Oqt. Trong t6ng sO gen dugc sinh
ra
thdy
c6
14
magh don d6u chria c6c nucl66tit tu do m6i
t*Ong
"Oi 6'ao cung c6p. Mach rlcrn thir
nh6t cua gen ban dAu c6
A
:
225 vd G
:
37 5,
*p-.h
irtt
nui
"d
g;
d6 c6
A
:
300
vd
G:
600.
Tinh
s6 <sub>nucl66tit timg loai m6i </sub><sub>trucrng cung c6p cho </sub><sub>qud </sub><sub>trinh </sub><sub>nh6n </sub><sub>d6i</sub>
cria gen n6i tr6n?
Cffu 3 (4,0 di€m)
O mQt lodi ct6ng vflt, c6
z
t|bin
sinh tnmg c6 ki6u gen AabbDd ti6n hdnh gi6m
11,"" binh thucm9 t?o giag
tu.
Sti lopi trung thgc tC c6 th6 c6 ld bao nhi6u? Hey"vi€t
ki6u gen tuong img
v6i
sO lopi trung thgc
tdn6itr6n.
Ciu
4 (4,0 di€m)
a) PhAn biQt d6ng sinh
cing
trfmg vd d6ng sinh kh6c tnmg.
b)
Tpi
sao
o
c!c.2eV giao phdn, ngudi
ta
lir6n henh tr,r thp ph6n
bit
buQc li6n
ti€p qu.a nhi6u the he thdy xhy ra-hiQntqOg <sub>tho6i ho6 gi6ng, trong </sub>
<sub>khi </sub>
<sub>d </sub>
<sub>cdc'cdy </sub>
<sub>tg</sub>
thr,r ph6n kh6 nghiCm
ng{t khi
tg thu ph6n mrong d6n d6n trroai
hoi
gi6ng?
c)
cho
thc ne Pe c6
4
cdy,trgng <16 1 cdy c6
kitiu
gen
AA,
2
<sub>9dy </sub>c6 ki6u gen
Aa,
1 clty c6 ki6u gen u? tu thg ph6n fi6n
tiep
qua 4 tfrO nE. Sau 4 tfre fre tg thr,r <sub>Ofia"</sub>
thi
ti
lC ki6u gen cria quAn thti nhu thi5 ndo?
Cdu 5 (4,0 di€m)
,.1 ,,
.
a) O
lfa,
gen
D
quy dinh thdn cao trQi hodn todn so
v6i
gen d q.ry dfnh thdn
thdp.
G:llq"J
<sub>dinh </sub>
<sub>kt </sub>
<sub>chin </sub>
<sub>sdm trQi hodn todn"so </sub>
<sub>v6i </sub>
<sub>gen </sub>
<sub>t </sub>
<sub>quy dinn hat </sub>
<sub>rhitt</sub>
muQn. BiCt
2 c{p
gen
nim
tr6n
2
capnhi6.m sdc <sub>th6 thudrng kh6c nhau, kh6ng x6y</sub>
3,hi9n
tugng
ho{r vi
gen.
Kh6ng
cdn
vi6t
so d6
lai
minh
ho4, hdy
tim
ki6u
gen,
ki6u hinh cria P d€ ngay F1 c6 su ph6n tfnh vC 2 cW
tinh
trpng theo
ti
19 kieu hinh
1:1:1:1 vd 9:3:3:1.
b)
Cho ph6p
lai
AaBbDdEe
x
AaBbDdEe.
Bi6t
rang
m5i
gen
qui
dinh mQt
tinh trang, tinh tr4ng trQi ld
tr6i
hodn todrn. Hdy x6c dinh:
aA t
- So ki6u gen d F1.
-
56 ki6u hinh 0 Fr.
-
St5 loai bi6n di tO hcr,p xu6t hiQn 6 Fr.
-
Ti
19 ki€u hinh <sub>mang </sub><sub>3 </sub><sub>tfnh trpng </sub>
<sub>tr6i </sub>
<sub>d </sub><sub>F1.</sub>
</div>
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