Answer:
Populations from the Americas started from a founding population with a high frequency of the O allele
Explanation:
Human blood type is determined by three different codominant alleles: IA, IB, and, which are named A (IA), B (IB), and O (i). Each person has two blood type alleles, i.e., one allele inherited from the mother and one from the father. The frequency of the O blood allele is very high in indigenous populations, and in Central and South American populations this allele may reach a frequency of 1 (100%). In consequence, the predominance of the O blood allele in Native American populations suggests that these populations descended from a founding population that had a high frequency of the O blood allele. A founder effect may even cause the fixation of one allele within a population, and this phenomenon is known to be associated with the loss of genetic variation.
Answer:
The esophagus and the stomach.
Explanation:
There are many parts to the digestive system, but these are the most common answers.
Answer:
Explanation:
Inside the cell, there is a greater concentration of water molecules and outside the cell, there is a lesser conc. of water molecules. So, through osmosis, the water will move to a solution of higher solvent concentration.
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Hope this helped!
<h3>~AnonymousHelper1807</h3>
Answer:
Nutrients for growth and a safe environment.
Explanation:
“Medium” is just the term for the local environment. It may be a gel (agar) or a liquid solution. It “cultures” the cell – meaning it is intended to provide an local environment suitable for growth.
The specific compounds put into the culture medium are intended to promote the growth of the living cell.
