Academic session 2026-27, Chapter 8 in the current curriculum.
Welcome to the NCERT Solutions for Class 10 Science - Chapter Heredity and Evolution. This page offers a step-by-step solution to the specific question from Exercise 0, Question 47:
Give reasons for the appearance of new combinations of characters in the F2 progeny.
. With detailed answers and explanations for each chapter, students can strengthen their understanding and prepare confidently for exams. Ideal for CBSE and other board students, this resource will simplify your study experience.Give reasons for the appearance of new combinations of characters in the F2 progeny.
F1 generation of the plant contain round and yellow seeds and by crossing the gametes formed by the f1 generation gives the new combination in the f2 generation i.e, Round yellow, Round green, Wrinkled yellow, wrinkled green with 9:3:3:1 ratio.
This depicts the law of independent assortment in which alleles of different characters located in the different pairs of homologous chromosomes are independent of one another in their segregation during the gamete formation and in the offspring by the fertilization, both processes will occur randomly. As in the above paragraph this shows that each pair of allele is independent of one another. This shows that chances of seed to be round or wrinkled does not depend on their chances to be yellow or green.
In the following crosses write the characteristics of the progeny
| Cross | Progeny |
|---|---|
|
(a) RR YY x RR YY |
................................... |
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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 47: Give reasons for the appearance of new combinations of characters in the F2 progeny.....
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