Question

How many contrasting traits were studied by Mendel during his experiments in pisum sativum ?

Answer 1

7 contrasting characters----- 1.Plant height 2.flower position 3.flower colour 4.pod shape 5.pod colour 6.seed shape 7.seed colour
These characters were studied by Mendel in pea plant

Answer 2

ANSWER :
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Mendel has chosen 7 pairs of contrasting characters.
Refer the attachment.
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Hope this helps you.