Which of the following statements are correct | vedclass

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(D) Analysis of statements:$(A)$ Amino acids are substituted methanes where four substituent groups (amino, carboxyl, hydrogen, and $R$-group) occupy

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$(4)$ $A$ and $C$ only

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(D) Analysis of statements:$(A)$ Amino acids are substituted methanes where four substituent groups (amino, carboxyl, hydrogen, and $R$-group) occupy the four valency positions of the $\alpha$-carbon. This statement is correct.$(B)$ Serine is a polar, uncharged (neutral) amino acid, not an aromatic one. This statement is incorrect.$(C)$ Valine possesses a non-polar, hydrophobic side chain and is classified as a neutral amino acid. This statement is correct.$(D)$ Lysine contains an extra amino group in its side chain, which makes it a basic amino acid, not acidic. This statement is incorrect.Therefore, statements $A$ and $C$ are correct. The correct option is $(4)$.

Which of the following statements are correct regarding amino acids?
$A$. They are substituted methanes.
$B$. Serine is an aromatic amino acid.
$C$. Valine is a neutral amino acid.
$D$. Lysine is an acidic amino acid.
Choose the correct answer from the options given below:

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Which of the following statements are correct regarding amino acids?$A$. They are substituted methanes.$B$. Serine is an aromatic amino acid.$C$. Valine is a neutral amino acid.$D$. Lysine is an acidic amino acid.Choose the correct answer from the options given below: