Cearel and millet proteins are

Options

A. deficient in lysine and tryptophan
B. deficent in lysine
C. rich inn lysine and deficient in tryptophan
D. deficient in lysine and rich in tryptophan

Answer

### Step-by-Step Solution:

1. **Understanding the Question**: The question asks about the protein content of cereals and millets, specifically their deficiencies.

2. **Identifying the Proteins**: Cereal and millet proteins are known to be incomplete proteins. This means they do not contain all the essential amino acids required by the body.

3. **Analyzing Amino Acid Deficiencies**:
- Cereal and millet proteins are typically deficient in certain essential amino acids, particularly lysine and tryptophan.
- Lysine is an essential amino acid that is often lacking in cereal grains.
- Tryptophan is another essential amino acid that is also found in lower amounts in these proteins.

4. **Evaluating the Options**:
- **Option 1**: Deficient in lysine and tryptophan. (This is correct)
- **Option 2**: Deficient in lysine only. (This is incorrect as it ignores tryptophan)
- **Option 3**: Rich in lysine and deficient in tryptophan. (This is incorrect as cereals are not rich in lysine)
- **Option 4**: Deficient in lysine but rich in tryptophan. (This is incorrect as they are also deficient in tryptophan)

5. **Conclusion**: Based on the analysis, the correct answer is **Option 1**, which states that cereal and millet proteins are deficient in both lysine and tryptophan.