SELECT * FROM question_mgmt as q WHERE id=3713 AND status=1 SELECT id,question_no,question,chapter FROM question_mgmt as q WHERE courseId=9 AND subId=16 AND chapterId=260 and ex_no='2' AND status=1 ORDER BY CAST(question_no AS UNSIGNED) CBSE Free NCERT Solution of 10th science Heredity and Evolution how do mendel rsquo s experiments show that traits

Question:

How do Mendel’s experiments show that traits are inherited independently?

Answer:

Mendel gave the law of independent assortment from the dihybrid cross.

Mendel performed an experiment in which he made crosses of pea plant with the round yellow seeds and one with the wrinkled   green seeds. And in the F1 progeny, round yellow seeds are dominant over the wrinkled green seeds. And in the F2 generation outcome, he saw all the characters are inherited independently by the use of punnett square that helps to demonstrate the possible combinations of the gametes in F2 progeny. Those independently inherited combinations were round yellow, round green, wrinkled yellow and wrinkled green as shown below :

seed circle

This punnet square is showing the 16 possible combination of gametes with the phenotypic ratio 9:3:3:1 and 1:2:1:2:4:2:1:2:1 genotypic ratio in F2 generation. Every pair is showing the different characters, showing independent assortment.


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