Four friends were arguing about the time scales for geoscience prosses related to plate tectonics. They each had different ideas
about how long it takes for the motion of earth's tectonic plate to produce changes on earth's surface. This is what they said: Natia: The movement of Earth's plates forms landforms over million of years.
Zeke: The movement of Earth's pates causes rapid events that can occur within seconds.
Akoni: The movement of Earth's plate only moves continents across Earth's surface
Jan: The movement of Earth's plates only moves continents across Earth's surface.
The sickle form of the hemoglobin gene is created when an adenine nucleotide is changed to a thymine. ... That single amino acid replacement in the -globin protein alters the shape and the chemistry of the hemoglobin molecule, causing it to polymerize and distort the red blood cell into the sickle shape.
