BB and bb can not produce bb, are you 100% on this?

what if recombination occure?

In addition, I am not so sure Bb eyes can not be blue. I agree most of those babies have brown eyes, but not 100%, you can get a feel from this forum, that is the fact.

所有跟帖： 

• 除了突变，即B突变成了b。不过研究倒是证实了最早的蓝眼 -woth- ♀ (52 bytes) () 07/13/2010 postreply 10:40:16

• 突变和重组是两回事，几率也可能高得多。 -padme- ♀ (0 bytes) () 07/13/2010 postreply 10:44:33

• 在这种情况下没有啥有意义的重组，后代基因型还是Bb -woth- ♀ (0 bytes) () 07/13/2010 postreply 10:47:27

• 无语，把基因重组也否定了，大专家。 -padme- ♀ (0 bytes) () 07/13/2010 postreply 10:50:41

• 我也想知道，在这种情况下，你怎么个重组组出个bb来？ -woth- ♀ (95 bytes) () 07/13/2010 postreply 10:55:45

• homologous recombination where one copy of DNA is replaced by an -padme- ♀ (76 bytes) () 07/13/2010 postreply 11:06:25

• 同源重组，你再仔细看看和想想，包括这个几率问题 -woth- ♀ (0 bytes) () 07/13/2010 postreply 11:23:10

• 我又不是什么专家，有什么好想的？ -padme- ♀ (180 bytes) () 07/13/2010 postreply 11:36:35

• i already said unless genetic mutation or exception happens -Q_Bao- ♀ (237 bytes) () 07/13/2010 postreply 10:41:25

• It is not that rare, just look around the forum. -padme- ♀ (116 bytes) () 07/13/2010 postreply 10:47:20

• 看看我在上面回复说的，很有可能是不同人对颜色的看法不同而已 -woth- ♀ (0 bytes) () 07/13/2010 postreply 10:50:26

• 别人都是色盲， 笑话。 -padme- ♀ (0 bytes) () 07/13/2010 postreply 10:53:18

• 呵呵，你爱说别人是色盲，我也没有办法。我没有看到， -woth- ♀ (194 bytes) () 07/13/2010 postreply 11:00:36

• i look around the forum, i look around real life people -Q_Bao- ♀ (122 bytes) () 07/13/2010 postreply 11:08:56

• I invite you come to my home and take a look of my kid -padme- ♀ (42 bytes) () 07/13/2010 postreply 11:12:17

• sure, that'd be good. :) -Q_Bao- ♀ (122 bytes) () 07/13/2010 postreply 11:18:24