LIÊN KẾT GEN VA HOÁN VỊ GEN

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LIÊN KẾT GEN VÀ HOÁN VỊ GEN
1. Mục tiêu:
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3. Tiến trình bài dạy.
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- CH 2:G: Viết sơ đồ lai từ P=>F
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Hoạt động 1:Liên Kết Gen
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I. Liên kết gen
* Thí nghiệm: u[
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VGiải thích:
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* Viết sơ đồ lai:
VKết luận
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Hoạt động 2: Hoán vị gen
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,LIs
&7#Bie"M28
3"M28%<Xu]u3uQ7
s
&7H-tHM24
#'9%#H1"*2

%.:8#9%##/-0
H 7s
&7H/-01,`,
PA13"K%<
#')s
&7H-t#%4%#3.
,RH 7"#4%uQ7s
VWLưu ý h/sH 7%#=i81
"#%€65#01:*
%[%€6,R#01G
#€,!2"i81H 7
&7*2%4%#9#|^#4
356s
&7•*2%|2#9#|^
H 71#9#/I%<
ws
&7|^H 7"#J
3-0M24~s
-HP%"3#82BabW
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QH"#4%XW
&HP79#
&HP^#2
&HP&%4%6M2,5#
#K#%4#3I2n%
#'%yqI1*P
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"#8I#'i81]

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,,`3519%4%6i2Y#/
`#06IaH 7W
&HPQK,|2•%<7Xi81
@1,`%4%,%1JI9
%##2kl;#]
&HP@3
&HPjk=/~^%4#L%\
QH4`#0aHW`
^%4#L%#'3
~
&HP9#,%kg~
II. Hoán vị gen
1. Thí nghiệm của Moogan
và hiện tượng hoán vị
gen:„F%#*%$2:
12RYI
&u#'9%#
X
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♀ j

o4Ii}
]6%F
j
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o4Ifkx
]6%Ffxxkx
o4I%Fkf
]6…kf

2. Cơ sở tế bào học của hiện
tượng hoán vị gen
&%4%6M2,5##K#
%4#3I2n%#'
%yqI1*P"#
8I#'%#v12!
%y#2*#|%
^)^#€%I†
&‚IG^)%.#L%4
"#8I#'i81]
ƒ%4%P-.,Rt
,,`3519%4%6i2Y#/
`#06IaH 7W
* Viết sơ đồ lai:
* Cách tính tần số HVG:
&q‡/#|1CI^%4
#L%\"L2#K#4`#01*
`^%4#L:,{%
&`%4%zI6
#435
&|^H 7#Z#.#€%
)q~
Hoạt động 3: Ý nghĩa của LKG và HVG.
H,G%<7 H,G%<HP G2#)8
&7*2>#?%<#/
-0uQ7s
&7*2>#?%<#/
-0H 7s
&7Q#8%4%#ƒ%4%
6\*,!2Ks

&7|^H 7%\#L
21"#8%4%#ƒ%4%
6,\1*)8,R12!
3-0%
&HP
&21K@`,5#%<
&#!26^,-0%B#0
3-2ƒ1*P
&HP
&2R)5`#0
2*/2%##43
%#;^
&4%6M2>%\%.#G,-0%
`#016
&HP4%6%i#2
%Ai81#435
III. Ý nghĩa của hiện tượng
LKG và HVG
1. Ý nghĩa của LKG
&21K@`,5#%<
&#!26^,-0%B#0
3-2ƒ1*P
&]8I)8@12!)!
3ƒ%<#\I6M2>%\>
#?1%#;^
2. Ý nghĩa của HVG
&2R)5`#0
2*/2%##43
%#;^
&4%6M2>%\%.#G,-0%

`#016
&#B,-0%"#8%4%#
-.,^%<%4%61*
P,.35,"#8%4%#
,-0%9#)q~H 7#
w
c. Củng cố(2') 7;#,;%#|##
&7 %##I)B3!uQ7OH 7
Hướng dẫn hs học bài (1')
&H;%#2G%#|##
&18{%'2#Z3)B"
&P)I