Which vector can clone only a small fragement of DNA

Options

A. Cosmid
B. Bacterial artificial chromosome
C. Yeast artificial chromosome
D. Plasmid

Explanation

To determine which vector can clone only a small fragment of DNA, we need to analyze the options provided:

1. **Cosmid**:
- Host: E. coli
- Insert size: Approximately 35 to 45 kilobases (KB)

2. **Bacterial Artificial Chromosome (BAC)**:
- Host: E. coli
...