Biology HESI A2 2024

In a strand of DNA, you would expect to see adenine paired with ___________.

Imagine that two parents both carry the recessive gene for cystic fibrosis. Any homozygous recessive offspring will manifest the disease. What percentage of the offspring is predicted to be carriers but not manifest the disease?

During which phase of cell division do the chromosomes replicate?

Why are bacteria and blue-green algae often classified together?

Three students measured the mass of a product of combustion. They recorded measurements of 14 g, 16 g, and 17 g. If the known mass of the product is 30 g, how would you describe the students' measurements?