For an aminoacid 'X', the isoelectric point is 6.1. Then 'X' is

Options

A. Acidic amino acid
B. Basic amino acid
C. Neutral amino acid
D. Acidic or basic amino acid

Answer

To determine the nature of the amino acid 'X' based on its isoelectric point (pI), we can follow these steps:

### Step 1: Understand the Isoelectric Point (pI)
The isoelectric point (pI) is the pH at which an amino acid carries no net electrical charge. This means that the positive and negative charges are balanced.

### Step 2: Identify the pI Value
In this case, we are given that the pI of amino acid 'X' is 6.1.

### Step 3: Compare the pI Value with Thresholds
According to the information provided:
- If the pI is less than 5.5, the amino acid is considered acidic.
- If the pI is greater than 6.2, the amino acid is considered basic.
- If the pI is between 5.5 and 6.2, the amino acid is considered neutral.

### Step 4: Analyze the Given pI Value
Since the pI of amino acid 'X' is 6.1, we can see that it falls between 5.5 and 6.2.

### Step 5: Conclude the Nature of the Amino Acid
Based on the comparison, we conclude that amino acid 'X' is a neutral amino acid.

### Final Answer
Amino acid 'X' is a neutral amino acid.

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