In his classic experiments on pea plants, Mendel did not use

A seed shape
B flower position
C seed colour
D pod length.

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Answer & Solution

Correct Answer

(D) pod length.

Step-by-step Solution

Detailed explanation

(d) : Mendel considered the following characters of pea in his experiments :

	Character	Dominant	Recessive
\(1\)	Seed shape	Round \((R)\)	Wrinkled \((r)\)
\(2\)	Seed cotyledon colour	Yellow \((Y)\)	Green \((y)\)
\(3\)	Flower colour	Violet \((V)\)	White \((v)\)
\(4\)	Pod shape	Inflated \((I)\)	Constricted \((i)\)
\(5\)	Pod colour	Green \((G)\)	Yellow \((g)\)
\(6\)	Flower position	Axial \((A)\)	Terminal \((a)\)
\(7\)	Stem height	Tall \((T)\)	Dwarf \((t)\)

Apply the relevant identity from the chapter and substitute the values established in the previous step, keeping the original constraint in view.

Use the simplified expression to isolate the unknown, then plug the result back into the question setup to confirm the working is internally consistent.

Cross-check against a boundary or limiting case. Both the dimensional balance and the qualitative behaviour at the extreme should agree with the candidate answer.

Combine the steps above to identify the correct option. The remaining choices each fail at least one of the consistency, dimensional, or boundary checks.

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\(B\). Alexander von Humboldt	\(II\). Long term ecosystem experiment using out door plots
\(C\). Paul Ehrlich	\(III\). Global species diversity at about \(7\) million
\(D\). David Tilman	\(IV\). Rivet popper hypothesis

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