In question 44, what are the combination | Class 10 Science Chapter Heredity and Evolution, Heredity and Evolution NCERT Solutions

Question:

In question 44, what are the combinations of character in the F2 progeny? What are their ratios?

Answer:

F2 generation or progeny is shown by doing the dihybrid cross which is the combination of these two monohybrid crosses.

Generation                   ROUND - YELLOW SEED                x                  WRINKLED - GREEN SEED
                                                                     RRYY                                                                            rryy
                                                                        ↓                                                                                  ↓
Gametes                                                    RY, RY                                                                           ry, ry

                                                             
F1 generation                                          RrYy        x      RrYy

Gametes                                       RY, Ry,rY, ry              RY, Ry, rY, ry

F2 generation

                                          

F2 ratios:-

1) Round yellow – 9
2) Round green – 3
3) Wrinkled yellow – 3
4) Wrinkled green – 1

Hence shows 9:3:3:1


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Welcome to the NCERT Solutions for Class 10 Science - Chapter . This page offers a step-by-step solution to the specific question from Excercise 0 , Question 45: In question 44, what are the combinations of character in the F2 progeny? What are their ratios?....

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