Answer:
The DNA mutation causes a change in the amino acid sequence for hemoglobin, which causes a change in the shape of red blood cells.
Explanation:
Sickle cell anemia is one of a group of disorders known as sickle cell disease. Sickle cell anemia is an inherited red blood cell disorder in which there aren't enough healthy red blood cells to carry oxygen throughout your body.
Normally, the flexible, round red blood cells move easily through blood vessels. In sickle cell anemia, the red blood are shaped like sickles or crescent moons. These rigid, sticky cells can get stuck in small blood vessels, which can slow or block blood flow and oxygen to parts of the body.
Sickle cell anemia is caused by a mutation in the gene that tells your body to make the iron-rich compound that makes blood red and enables red blood cells to carry oxygen from your lungs throughout your body (hemoglobin). In sickle cell anemia, the abnormal hemoglobin causes red blood cells to become rigid, sticky and misshapen.
The sickle cell mutation reflects a single change in the amino acid building blocks of the oxygen-transport protein, hemoglobin. This protein, which is the component that gives red cells their color, has two subunits. The alpha subunit is normal in people with sickle cell disease. The beta subunit has the amino acid valine at position 6 instead of the glutamic acid that is normally present. The alteration is the basis of all the problems that occur in people with sickle cell disease.
It will rain next. The moist air has lots of gas water. And when the warm gas water meets the cool temperature in the atmosphere, it will become liquid water. And when liquid water becomes more and more, it will form rain.
The first question is horses having long legs so they can run away from predators
The second question is Animals are less likely to eat this plant.
The third question is White skin is a favorable adaptation because it makes the lizards hard to see against the white sand.
The fourth question is Organisms produce fewer offspring if the environment does not have enough resources.
The fifth question is People kill rattlesnakes that rattle when approached by humans, but people do not kill rattlesnakes that remain silent. The quiet snakes survive and breed.
The sixth question is With the smallest population size
If this helps brainliest answer would be appreciated
Answer:
30,000
Explanation:
you welcom hope this helped you guys!
Answer:
can you upload the question again..coz some part are not showing
