Answer:
here.
Explanation:
Due to the prevalence of malaria in Africa, the allele for sickle cell anemia (HbS) provides a selective advantage. That's why it remains in the population.
A normal African person (HbAHbA), with normal haemoglobin, will not die of anemia, but will die of malaria.
An African person with sickle cell anemia (HbSHbS), with abnormal haemoglobin, will die of anemia.
A heterozygous African person (HbAHbS), with half of his red blood cells (RBCs) being normal and the other half being sickle-shaped, will neither die from anemia, nor malaria since the plasmodium will be incapable of completing its life cycle in the abnormal RBCs.
Thus heterozygous African people will grow, reproduce and pass on the HbS allele to the next generations.
<span>Bacterial genome is prone to mutational changes due to its simple nature and less efficient DNA repair mechanisms compared to humans, thus it has more chances of obtaining new genetic traits.</span>
I believe it should be 94%.Normal arterial oxygen is approximately 75 to 100 millimeters of mercury. Values under 60 mmHg usually indicate the need for supplemental oxygen. Low blood oxygen is known as hypoxemia. Normal pulse oximeter readings usually range from 95 to 100 percent. Values under 90 percent are considered to be low.
Answer:
amino acids
Explanation:
The building blocks of proteins are amino acids, which are small organic molecules that consist of an alpha (central) carbon atom linked to an amino group, a carboxyl group, a hydrogen atom, and a variable component called a side chain.
Hope this helps :)
Hey There!
Your answer is the primary decomposers are fungi!
Fungi could be found anywhere: lakes,plains,caves,swamps,etc...
If you need anymore help just ask me!
Hope this helps!
