Plant species produce cysteine protease, which disrupt the

peritrophic membrane that protects the gut epithelium of many insects.

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#Id: 6269

#Unit 8. Inheritance Biology

Supplementary gene interaction (9:3:4)

Glume colour in millets

          P                                   Q

X                         Y                                   Z

Brown               purple                   red

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#Id: 6270

#Unit 8. Inheritance Biology

DOMINANT EPISTASIS

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#Id: 6271

#Unit 8. Inheritance Biology

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#Id: 6272

#Unit 8. Inheritance Biology

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#Id: 6273

#Unit 8. Inheritance Biology

DUPLICATE RECESSIVE EPISTASIS(9:7) Duplicate recessive epistasis, in which two recessive alleles at either of two different loci can suppress a phenotype. 

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#Id: 6274

#Unit 8. Inheritance Biology

Dominant recessive epistasis (13:3) Pigmentation in paddy rice

P  = purple

              pp=green

              I   =inhibitory gene

              PpIi × PpIi

                       

              P_I_=9  green

              P_ii = 3 purple

              ppI_=3  green

              ppii =1  green