Answer:
Mutations in the HBB gene cause sickle cell disease. The HBB gene provides instructions for making one part of hemoglobin. Hemoglobin consists of four protein subunits, typically, two subunits called alpha-globin and two subunits called beta-globin.
Explanation:
<span>The classic Periodic Table organizes the chemical elements according to the number of protons that each has in its atomic nucleus. ... Elements are arranged in order of increasing atomic number. Order generally coincides with increasing atomic mass. The different rows of elements are called periods.</span>
Answer: The average global temperature has increased by a little more than 1°. The temperatures we experience locally and in short periods can fluctuate. In the past, a one- to two-degree drop was all it took to plunge the Earth into the Little Ice Age. The strong warming trend of the past four decades likely reflects a shift
Explanation: hope i helped