Among Valine, Leucine, Isoleucine, Lysine and phenyl alanine, odd member is

Options

A. Leucine since others are acidic
B. Valine since others are basic
C. Isoleucine since others are optically active
D. Lycine since others are neutral

Answer

To determine the odd member among Valine, Leucine, Isoleucine, Lysine, and Phenylalanine, we need to analyze the properties of these amino acids.

### Step-by-Step Solution:

1. **Identify the Amino Acids**:
- The amino acids in question are:
- Valine (Val)
- Leucine (Leu)
- Isoleucine (Ile)
- Lysine (Lys)
- Phenylalanine (Phe)

2. **Classify the Amino Acids**:
- Amino acids can be classified into three categories:
- Neutral (non-polar)
- Acidic (polar, negatively charged)
- Basic (polar, positively charged)

3. **Determine the Classification**:
- **Valine**: Neutral amino acid (non-polar)
- **Leucine**: Neutral amino acid (non-polar)
- **Isoleucine**: Neutral amino acid (non-polar)
- **Lysine**: Basic amino acid (polar, positively charged)
- **Phenylalanine**: Neutral amino acid (non-polar)

4. **Identify the Odd Member**:
- From the classification, we see that Valine, Leucine, Isoleucine, and Phenylalanine are neutral amino acids, while Lysine is a basic amino acid.
- Therefore, Lysine is the only basic amino acid among the group.

5. **Conclusion**:
- The odd member among Valine, Leucine, Isoleucine, Lysine, and Phenylalanine is **Lysine**.