ʱ : 普通遗传学试题精解 - 百度文库ϿʼĶ
CPһcpԣԷһͬʱ״Ļ152=7.5
ڶӲܵһӵӰΪ7.5 𰸡 7.5 7.5
2ڹӬУۣDۣdΪԲλXȾɫϣBԺbΪԣᣨVԲгᣨvΪԣԻλͬһȾɫϣڽһֻӺϺۻƹӬһֻۺг۹ӬӽѾ֪һлгг=424288ʣ
1ױʲô?ױֻ? 2F1۴Ӭ۴ӬӬӬıǶ? 3400ֻһУϲۺ۹ӬΪ?ۻƹΪ٣ ֪ʶҪ㡿
1.ӬԱʽڻƽģǶӬXYȾɫ壬ӬXȾɫ塣
2.ĸ ˼·
1.֪ױ࣬dzȾɫŴۻǰXŴ
ױΪ
DDױ:BbVvXX8ӣBVXBvXDbvXbVXDBVX
DdDBvXDbvXDbVXD
ױbbvvXY2ӣbvXbvY
2.ٸݣ1зĽ֪F1к۴Ӭ۴ӬӬӬıΪ1111
3һкıΪ8ڿɫĻͿƻĻͬһȾɫϣϵĹϵԴ˵8ȺкۺͰ۸ռ50ںۺĸд˵۸ռ50400ֻһУϲۺ۹ӬΪ8ֻ81/21/2400ͬĵۻƹӬΪ421/21/2=105 𰸡
1ױͼΪ
ddBbVvXXBVXbvXDBVXDBvXDbVXD ױ8ӣBvXDbvXDbVXD
ױbbvvXY2ӣbvXbvY
2l111
38ֻ10.5
3кɫäŴһĸɫäĸŮͬһɫä˽飬һӺһŮʣ
ddDdD 25
1ɫäĸǶ? 2ŮɫäĸǶ? 3ɫäĸǶ٣ ֪ʶҪ㡿
1ԱʽXY͡
2ɫäŴʽɫäɫäƣǽһǵһλɫäɰXԻƣһѭXŴص㡣
3ʵԭԶ¼ͬʱĸʵǸԶʵij˻ʵԭ¼ܸʵڸԶĸ֮͡ ˼·
ɫäǰXŴʽһĸɫäĸŮӦɫäЯߣһɫäˣXȾɫЯɫä飬Ļͺͱ£
ɴ˿ɼɫäĸ1/2ӺŮӰ죬ŮɫäĸҲ1/2ɫäĸ1/21/2һl/4 𰸡
11/2 21/2 31/4
26