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Sickle cell anemia results from a mutation in a gene called HBB, which contains the blueprint for cells to make part of a protein called hemoglobin. The hemoglobin protein is made up of two alpha chains and two beta chains.
Sickle cell anemia is the result of a point mutation, a change in just one nucleotide in the gene for hemoglobin. This mutation causes the hemoglobin in red blood cells to distort to a sickle shape when deoxygenated. The sickle-shaped blood cells clog in the capillaries, cutting off circulation.
C is probably the best answer choice: <span>Were soft bodied and tiny, therefore unlikely to fossilize.</span>
The last <span>process to occur in the epiphyseal plate is ossification</span>
The answer to this question should be: <span>"i can return to my normal activities like cleaning my house and vacuuming"
A post cataract surgery patient will be prone to an airborne allergen such as dust so it is not recommended to do any cleaning or be in a place with much dust. Vacuuming will increase the amount of the dust in the room and this might cause damage to the patient eye.</span>
Scientists consider CARBON DIOXIDE to be the main engine of the atmospheric warming related to greenhouse gases. Global atmospheric carbon dioxide levels have been rising steadily since the Industrial Revolution which marks the beginning of our extensive use of fossil fuels. Fossil fuel use puts carbon dioxide gas into the atmosphere faster than natural systems are able to use it.
