The restriction enzyme EcoRI recognize following palindrome sequence.

Options

A.
B.
C.
D.

Answer

To answer the question regarding the recognition palindromic sequence for the restriction enzyme EcoRI, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Palindromic Sequences**:
- A palindromic sequence in DNA is a sequence that reads the same forward and backward on complementary strands. This is crucial for restriction enzymes as they recognize these sequences to cut DNA.

2. **Identifying the EcoRI Recognition Sequence**:
- The specific recognition sequence for the restriction enzyme EcoRI is known to be "GAATTC".

3. **Writing the Complementary Strand**:
- The complementary strand to "GAATTC" would be "CTTAAG". This is because:
- Guanine (G) pairs with Cytosine (C)
- Adenine (A) pairs with Thymine (T)

4. **Visualizing the Cut Site**:
- EcoRI cuts between the G and A on both strands. Therefore, the cut occurs:
- On the top strand: G|AATTC
- On the bottom strand: CTT|AAG

5. **Finding the Correct Option**:
- If provided with multiple-choice options, we would look for the one that contains the sequence "GAATTC" on one strand and "CTTAAG" on the complementary strand.

### Final Answer:
The recognition palindromic sequence for the restriction enzyme EcoRI is "GAATTC" on one strand and "CTTAAG" on the complementary strand.

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