Hi, I am stuck on a few questions for my Biology practie test. Here are the questions:

Hi, I am stuck on a few questions for my Biology practie test.

Here are the questions:

1. All other things equal, a harmful allele will be eliminated from a population most rapidly when the allele is ________.
2. Carbon-14 decays into Nitrogen-14 with a half-life of 5730 years. If you started with 100 grams of Carbon-14 today, at what time would there be only 25 grams of Carbon-14 remaining?

Thank you!