KCET · BIOLOGY · STD 12 - 4. Principles of Inheritance and Variation

Which of the following characters was not studied by Mendel in his Pea plant experiments ?

A Leaf shape
B Stem height
C Pod shape
D Seed shape

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Answer & Solution

Correct Answer

(A) Leaf shape

Step-by-step Solution

Detailed explanation

(A) Leaf shape
(There are 7 characters in pea plant studied my Mendel. Leaf shape is not the character studied by Mendel.

S. No.	Character	Dominant Trait	Recessive Trait
1.	Plant height	Tall	Dwarf
2.	Flower colour	Purple	White
3.	Flower/pod position	Axial	Terminal
4.	Pod shape	Inflated	Constricted
5.	Pod colour	Green	Yellow
6.	Pod shape	Round	Wrinkled
7.	Seed colour	Yellow	Green

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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