I need hypothesis and theoretical prediction for following lab experiment. Deter

Question

I need hypothesis and theoretical prediction for following lab experiment. Determine color and height ratios for corn plants Color of grains (karyopses) and height of Zea mays (corn) plants are often determined by a single gene. 1. Examine (a) the ears of corn having red and yellow grains and (b) the tray of tall and dwarf plants on demonstration. 2. Record your observations here and determine the probable genotypes of the parents of each cross. Probable genotypes of parents: Color of Corn Grains Number of red grains ------- Number of white grains --------- Ratio of red: white grains --------- Probable genotypes of parents ------X ------ Height of Plants Number of tall plants --------- Number of dwarf plants --------- Ratio of tall: dwarf plants --------- Probable genotypes of parents -------X------- 3. The preceding crosses involved only one trait and thus are termed monohybrid crosses, also examine a dihybrid cross.

Explanation / Answer

Probable genotypes of parents: Color of Corn Grains Number of red grains --75%----- Number of white grains ----25%----- Ratio of red: white grains ----3:1----- Probable genotypes of parents ---RR---X --rr---- Height of Plants Number of tall plants ----75%----- Number of dwarf plants ---25%------ Ratio of tall: dwarf plants ---3:1------ Probable genotypes of parents ---TT----X----tt---.

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