Name the scientist(s) responsible for each of the following discoveries:
Double helical structure of DNA ___________

Explanation

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks for the name of the scientist(s) responsible for the discovery of the double helical structure of DNA.

2. **Identifying the Discovery**: The double helical structure of DNA is a significant scientific discovery that describes how DNA is organized. It resembles a twisted ladder, where the sides of the ladder are made up of sugar and phosphate molecules, and the rungs are made of nucleotide pairs.

3. **Key Scientists**: The scientists credited with the discovery of the double helical structure of DNA are James Watson and Francis Crick. They proposed this model in 1953.

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