People with sickle cell anemia inherit a specific mutated gene. A gene is a specific sequence on a piece of . In sickle cell anemia, the affected gene includes instead of . Because of this change, the protein created has a different . This decreases the ability of the red blood cell to .

What advantages does a pedigree have over a written passage?

Which of the following is a feature of all cells? o a. all cells have a nucleus. o b. all cells have dna for at least part of their life cycle. het . o c. all cells are spheres. o d. all cells have a rigid cell wall.

Select the correct answer. which of the following statements is a scientific claim? a. the early solar system had large amounts of water; so, the oldest objects in the solar system should also be abundant in water. b. the mass of the universe is much greater than current models predict; it is not possible to explain this inconsistency. c. planet earth is abundant in water, but there is no way to scientifically determine from where earth's water originated. d. earth is shaped like a sphere even if not all of the scientific observations related to its shape support this idea.