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Among the following, the incorrect statement(s) is/are:
- a)Guanine is a Purine nucleobase
- b)Glycine and proline are achiral amino acids
- c)DNA contains glycosidic bonds and pentose sugars
- d)Sucrose is a non-reducing sugar.
Correct answer is option 'B'. Can you explain this answer?
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Most Upvoted Answer
Among the following, the incorrect statement(s) is/are:a)Guanine is a ...
Incorrect Statements
Glycine and proline are achiral amino acids.
Explanation
Achiral molecules are those that do not have a mirror image that is different from the original molecule. Glycine and proline are not achiral amino acids.
Glycine is the simplest amino acid and has a hydrogen atom as its side chain (R-group). It is not chiral because it has two identical hydrogen atoms as its R-group.
Proline, on the other hand, has a unique structure due to the presence of a cyclic side chain that forms a five-membered ring. This ring structure causes proline to be a chiral molecule.
Therefore, statement B is incorrect.
Correct Statements
A) Guanine is a Purine nucleobase
B) DNA contains glycosidic bonds and pentose sugars
C) Sucrose is a non-reducing sugar.
Conclusion
In summary, glycine and proline are not achiral amino acids, making statement B incorrect. The other statements are correct. Guanine is a purine nucleobase, DNA contains glycosidic bonds and pentose sugars, and sucrose is a non-reducing sugar.
Glycine and proline are achiral amino acids.
Explanation
Achiral molecules are those that do not have a mirror image that is different from the original molecule. Glycine and proline are not achiral amino acids.
Glycine is the simplest amino acid and has a hydrogen atom as its side chain (R-group). It is not chiral because it has two identical hydrogen atoms as its R-group.
Proline, on the other hand, has a unique structure due to the presence of a cyclic side chain that forms a five-membered ring. This ring structure causes proline to be a chiral molecule.
Therefore, statement B is incorrect.
Correct Statements
A) Guanine is a Purine nucleobase
B) DNA contains glycosidic bonds and pentose sugars
C) Sucrose is a non-reducing sugar.
Conclusion
In summary, glycine and proline are not achiral amino acids, making statement B incorrect. The other statements are correct. Guanine is a purine nucleobase, DNA contains glycosidic bonds and pentose sugars, and sucrose is a non-reducing sugar.
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Community Answer
Among the following, the incorrect statement(s) is/are:a)Guanine is a ...
All statements are correct but in 2nd glycine is achiral and proline is chiral
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