Assertion :Genes are stretches of DNA that make up the different codes for the different proteins. Reason: DNA is the complex bio molecule made up of sugars,phosphorus and nitrogen bases.

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 B Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
A gene is the basic physical and functional unit of heredity. Genes are made up of DNA. Some genes act as instructions to make molecules called proteins.
The codes for different proteins is based upon the sequence of the nucleotide on a DNA strand.
DNA is a complex biomolecule which is made up of deoxyribonucleotides which contain a deoxyribose sugar, a phosphate molecule and a nitrogen base.
Both assertion and reason are true statements individually but the assertion is not supported by reason.
So, the correct answer is 'Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion'.

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