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4.Principles of Inheritance and Variation
medium
Mendel chose pea plants because
A
They were cheap
B
They were having seven pairs of contrasting characters
C
They were easily available
D
Of great economic importance
Solution
(b) Mendel selected these $7$ characters –
$(1)$ Stem length $(2)$ Flower position
$(3)$ Pod shape $(4)$ Pod colour
$(5)$ Seed shape $(6)$ Seed colour
$(7)$ Seed coat colour
Standard 12
Biology