If the sequence of bases in one strand of DNA is known then the sequence in other strand can be predicted on the basis of -

Options

A. Antiparallel
B. Complementary
C. Polarity
D. Coiling

Answer

To solve the question, "If the sequence of bases in one strand of DNA is known, then the sequence in the other strand can be predicted on the basis of," we can follow these steps:

### Step-by-Step Solution:

1. **Understanding DNA Structure**:
- DNA is composed of two strands that form a double helix. Each strand consists of a sequence of nucleotides, which include a sugar, a phosphate group, and a nitrogenous base.

2. **Identifying the Base Pairing Rules**:
- The four nitrogenous bases in DNA are adenine (A), thymine (T), cytosine (C), and guanine (G).
- The base pairing rules state that adenine pairs with thymine (A-T) and cytosine pairs with guanine (C-G). This means A always pairs with T and C always pairs with G.

3. **Recognizing Antiparallel Orientation**:
- The two strands of DNA run in opposite directions, which is referred to as being "antiparallel." One strand runs from the 5' end to the 3' end, while the other runs from the 3' end to the 5' end.

4. **Applying Complementary Base Pairing**:
- If you know the sequence of bases on one strand, you can determine the sequence of the other strand by applying the complementary base pairing rules. For example, if one strand has the sequence A-T-G-C-A-T, the complementary strand will have T-A-C-G-T-A.

5. **Conclusion**:
- Therefore, the sequence in the other strand can be predicted based on the complementary nature of the base pairing.

### Final Answer:
The sequence in the other strand can be predicted on the basis of **complementary base pairing**.

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