Blattodea313 Posted October 20, 2013 Share Posted October 20, 2013 Could you create a punnett square for the yellow morph of Gyna lurida? I spent like 2 hours last night trying to figure it out. The ratio is like 1 in 50 is yellow. Quote Link to comment Share on other sites More sharing options...
Allpet Roaches Posted October 20, 2013 Share Posted October 20, 2013 The yellow appears to be a simple recessive. Once the brown specimens have been eliminated from a culture they do not reappear. Quote Link to comment Share on other sites More sharing options...
Blattodea313 Posted October 20, 2013 Author Share Posted October 20, 2013 How would you get the ratio of 1:50 (chance of yellow) by doing a punnett square? Quote Link to comment Share on other sites More sharing options...
Allpet Roaches Posted October 20, 2013 Share Posted October 20, 2013 How would you get the ratio of 1:50 (chance of yellow) by doing a punnett square? By adjusting the number of adults that do not carry the gene. Of course you'll have to have two het for expression. Quote Link to comment Share on other sites More sharing options...
platymeris Posted October 21, 2013 Share Posted October 21, 2013 Hi Orin, that's interesting, thanks for sharing. Just curious about the feature on the Roach Crossing site, which states that the yellow morph is "not 100% proven, so cultures will need culling to ensure that the yellow stays predominant." Was wondering if you might have any thoughts on this? Thanks again. Quote Link to comment Share on other sites More sharing options...
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