Name any two cloning vectors. Describe the features required to facilitate cloning into a vector.

Explanation

### Step-by-Step Text Solution:

1. **Cloning Vectors**:
- Two common cloning vectors are:
1. **Plasmid Vector**: A plasmid is an extra-chromosomal, self-replicating circular DNA molecule found in bacteria. It is double-stranded and can replicate independently of chromosomal DNA.
2. **Viral Vector**: Viruses can also serve as cloning vectors. They are inert outside living cells but can use the host's machinery to replicate their nucleic acid once inside a living organism.

2. **Features Required for Cloning into a Vector**:
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