Question 4DNA molecule is a good example for:1 pointTop down fabricationSelf assembly processA biological un-understood process

The DNA molecule is a good example of a self-assembly process.

Here's why:

1. The DNA molecule is composed of two strands that are twisted together in the shape of a double helix. Each strand is made up of a sequence of nucleotides, which are the basic building blocks of DNA.

2. These nucleotides interact with each other through specific base pairing rules (adenine with thymine and cytosine with guanine). This interaction guides the nucleotides to arrange themselves in a specific order.

3. Once the nucleotides are in the correct sequence, they automatically assemble themselves into the double helix structure of the DNA molecule.

4. This process is driven by the physical and chemical properties of the nucleotides themselves, without the need for any external guidance or intervention. This is what makes it a self-assembly process.

5. Therefore, the DNA molecule is not an example of top-down fabrication (where a system is built by starting with a large system and breaking it down into smaller parts) or a biological un-understood process (since we understand quite well how DNA self-assembles).