Question

1. how has the use of dna and genetic analysis enabled scientists to trace the migration of early man?

a. they have shown a link between modern humans and early humans.
b. they show that people live where they can satisfy their basic needs.
c. they have determined that people traveled along water sources during migration.
d. they show that people live where they can be close to family and friends.

Explanation:

DNA and genetic analysis can reveal genetic similarities and differences among populations. By studying these genetic markers, scientists can trace the lineage and migration patterns of early humans, showing the link between modern and early humans which helps in understanding migrations. Options B, C, and D are about factors influencing settlement rather than genetic - based migration tracing.

Answer:

A. They have shown a link between modern humans and early humans.