Assembling water-free DNA

This week's NSF Science 360 highlights include insights into how humans navigate using mental maps and internal compasses, which function independently. Researchers have also made strides in assembling DNA nanostructures without water, potentially advancing nanotechnology and understanding life's origins. Additionally, climate scientists are examining cave deposits to uncover prehistoric climate changes, focusing on how past temperatures influenced monsoon patterns, crucial for millions relying on this rainfall.

What do humans rely on to navigate when they are lost?

• Smartphone applications

• GPS devices

• Only street signs

• Mental maps and internal compasses

How do researchers assemble DNA nanostructures without water?

• Using high temperatures

• Using magnetic fields

• Using a water-based solvent

• Using a non-water solvent

What is one potential benefit of assembling DNA nanostructures in a non-water solvent?

• Increased durability

• Faster assembly time

• Lower cost

• More controlled assembly

What natural formations are climate scientists studying to understand prehistoric climate changes?

• Stalagmites

• Glaciers

• Coral reefs

• Tree rings

Why is stalagmite data from India important for climate scientists?

• It reveals ancient human activities

• It provides insights into past monsoon patterns

• It shows historical sea levels

• It helps predict future volcanic eruptions