Assertion :In dicot stem, the endodermis is also referred to as the starch sheath. Reason: The cells of the endodermis are rich in starch grains.

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

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Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion

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Assertion is correct but Reason is incorrect

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Both Assertion and Reason are incorrect

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Solution

The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
Dicot stem endodermis is the innermost layer of cortex represented by compactly arranged barrel shaped cells, without any intercellular spaces. The endodermis is wavy in appearance. The cells are richly deposited with starch grains and hence, endodermis is commonly described as a starch sheath.
So, the correct answer is option A.

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