question_answer 16)

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

Answer:

Mendel used a dihybrid cross between pure pea plants to show that traits are inherited independently. He selected pea plants with green round seeds (yyRR) with green wrinkled seeds (YY rr) (All yellow round seeds) hybrid. F1 In F1 generation, four types of gametes are formed (YR, Yr, yR, yr). F2 generation is represented as follows  

Gametes	YR	Yr	yR	yr
YR	YYRR	YYRr	YyRR	YyRr
Yr	YYRr	YYrr	YyRr	Yyrr
yR	YyRR	YyRr	yyRR	yyRr
yr	yrRr	Yyrr	yyRr	yyrr

  This shows that the two characteristics 'R' and 'y' are not linked to each other so are independently inherited