Question

1) Select 2 that apply.

What are the two questions that scientists have a hard time answering when it comes to evolution?

How does evolution happen?

When did evolution start?

How was new information added to genomes?

How did evolution happen so quickly?

To whom will evolution happen?

Answer 1

- When did evolution start?
- How was new information added to genomes?

Brief explanation: The exact timing/definition of when “evolution” began ties into the origin of life and first replicators, which is still an active area of research and debate. “How new information was added” is also a research focus: there are known mechanisms (mutations, gene duplication, exon shuffling, horizontal gene transfer, transposable elements, regulatory changes, etc.), but the detailed pathways by which particular novel functions and complex systems arose are often complex and actively studied.

(For clarity: “How does evolution happen?”—natural selection, drift, mutation, gene flow—are well established, and “to whom will evolution happen?” is a category error: evolution acts on populations, not individual organisms.)