Originally posted by alan_given at 2005-3-11 07:27 PM:
你睇清楚第50題先,佢係問alice's father,alice係colourblindness既female
ic...
咁講colourblind點先可以傳到去個仔到?:confused:
Originally posted by cmh_2002 at 2005-3-11 07:30 PM:
ic...
咁講colourblind點先可以傳到去個仔到?:confused:
只要mother係colourblind,個仔都會係
Originally posted by alan_given at 2005-3-11 07:32 PM:
只要mother係colourblind,個仔都會係
THX:icon090:
到我問,咁樣有冇錯:
mother colourblind + father colourblind ---> 仔colourblind,女colourblind
mother colourblind + father normal ---> 仔colourblind,女normal
mother normal + father colourblind ---> 仔unknown,女unknown
mother normal + father normal ---> 仔normal,女normal
[ Last edited by alan_given on 11-3-2005 at 07:45 PM ]
Originally posted by alan_given at 2005-3-11 07:40 PM:
到我問,咁樣有冇錯:
mother colourblind + father colourblind ---> 仔colourblind,女colourblind
mother colourblind + father normal ---> 仔colourblind,女normal
mother normal + father colourbli ...
一個x normal 一個x colorblind=>女係colorblind定 normal?
Originally posted by cmh_2002 at 2005-3-11 07:43 PM:
一個x normal 一個x colorblind=>女係colorblind定 normal?
normal
Originally posted by alan_given at 2005-3-11 07:44 PM:
normal
mother normal + father colourblind ---> 仔unknown,女unknown
咁仔同女都係1/2會colorblind?:icon091:
Originally posted by alan_given at 2005-3-11 19:40:
mother colourblind + father colourblind ---> 仔colourblind,女colourblind
mother colourblind + father normal ---> 仔colourblind,女normal
mother normal + father colourblind ---> 仔unknown,女unknown
mother normal + father normal ---> 仔normal,女normal
個仔可能會有colourblind
因為佢既X chromosome係黎自阿媽
而阿媽可能係homozygous dominant, 又或者係heterozygous
所以佢個仔有50%係colourblind
Originally posted by Newcastle Fans at 2005-3-11 07:48 PM:
個仔可能會有colourblind
因為佢既X chromosome係黎自阿媽
而阿媽可能係homozygous dominant, 又或者係heterozygous
所以佢個仔有50%係colourblind
係喎,thx
而家cert level都要學sex linkage? :confused: :icon068:
Originally posted by Newcastle Fans at 2005-3-11 07:52 PM:
而家cert level都要學sex linkage? :confused: :icon068:
bio未見過...
lee題係human bio:icon011:
Originally posted by cmh_2002 at 2005-3-11 19:54:
bio未見過...
lee題係human bio:icon011:
ic...
but actually sex linkage is not that difficult
Originally posted by Newcastle Fans at 2005-3-11 07:55 PM:
ic...
but actually sex linkage is not that difficult
human bio d野係咪教得深入d?(cert level):icon091:
Originally posted by cmh_2002 at 2005-3-11 19:57:
human bio d野係咪教得深入d?(cert level):icon091:
我冇考human bio...
但... 我覺得genetics既野係比較淺, 因為答既野唔會太抽象, 而且好少會答唔中pt