the total number of progeny obtained through Mendelian dihybrid cross is 1600 in F2 generation. how many of them pure. a. 400 b.2000 c.200 d.1000
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total genotypic ratio is 1 : 2: 1: 2: 4: 2: 1: 2: 1.
the sum of the ratio is 16,
only first 1 and last 1 is pure in the ratio
therefore the ratio of pure is 2/16
therefore no of pure in f2 = (2/16) x 1600 = 200
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