Mini-satellites are generally rich in

Options

A. A-T pairs
B. G-C pairs
C. A-G pairs
D. T-C pairs

Answer

To solve the question about mini-satellites and their base pair composition, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Definition of Mini-satellites**:
- Mini-satellites are short repetitive sequences of DNA that consist of 10 to 100 base pair repeats. They are also known as variable number tandem repeats (VNTRs).

2. **Identify the Location of Mini-satellites**:
- Mini-satellites are typically found in specific regions of chromosomes, particularly in the centromeres and telomeres.

3. **Analyze the Base Pair Composition**:
- The question provides four options: AT base pair, GC base pair, AG base pair, and TC base pair. We need to determine which of these is most prevalent in mini-satellites.

4. **Research Mini-satellite Characteristics**:
- Research indicates that mini-satellites are generally rich in GC base pairs. This is due to the stability and structural properties that GC pairs provide, particularly in repetitive sequences.

5. **Provide an Example**:
- For instance, in telomeres, a common sequence is TTAGGG, which shows a high GC content. The complementary sequence, AATCCC, also reflects this richness in GC pairs.

6. **Conclude the Answer**:
- Based on the understanding that mini-satellites are rich in GC base pairs, we can conclude that the correct answer to the question is "GC base pair".

### Final Answer:
Mini-satellites are generally rich in **GC base pairs**.

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