The influence of the founder in population genetics is the loss of genetic advantages that occur when a new generation of the population arises from a very small number of individuals who were previously part of a larger group (for example, a small group of animals survived a mass extinction event). Ernest Meyer was the first to develop the full concept of the term in 1952, and was able to do so using other theoretical work by scientists such as Sioual Wright. As a result of the loss of genetic differentiation, the new generation may be very different from their grandparents both genetically and morphologically. The influence of the founder is believed to lead in some exceptional cases to evolutionary diversity and to the emergence of new types of more sophisticated creatures.
In the picture to the left, indigenous people have almost equal numbers of red and blue individuals, while the three smaller founding groups show that one color can become predominant or fixed (the influence of the founder) as a result of random selection from the indigenous population. A bottleneck may also cause a founding effect even if it does not represent a completely new population.
The influence of the founder is a special case of genetic drift as well as the exposure of the new population to the influence of the founder. They are also often very small populations, and because of this, they appear to be increasingly sensitive to genetic drift, increase in internal reproduction and relatively low genetic differentiation. This can be seen in the limited gene ponds of Iceland, the Isle of the Resurrection and the Pitcairn Islands. Another example of this phenomenon is the enormous proportion of the Deaf population in Martha Vineyard, which led to the development of Marathas Vineyard's sign language.
1. i would say a horse rider
The United states operates under a constitutional democracy. In our system, the Constitution lays out the basic rules of the game under which politicians act to accomplish their different agendas. "Politics" is a broad term that can be used to describe what happens between these politicians in pursuit of their goals. "Government" is another broad term that encompasses the many different institutions enumerated by the Constitution in which the politicians function. Political science studies the interaction among politics, politicians, the government, and, within the American context, our constitutional
Answer:
C is the right answer. The annihilation of up to 90% of the Native American population due to illnesses such as smallpox necessitated the growth of the African slave trade.
Explanation:
Because natives lacked an immune system capable of combating diseases brought in from Europe, C is the right answer. Of course, this resulted in the introduction of a slave system, as Europeans transported many slaves from Africa.
A is incorrect because the growth in the number of Europeans was due to a variety of social and economic factors.
B is also incorrect because it is not based on historical evidence.
D is also incorrect because it had no effect on the Natives' life expectancy.
Answer: Yea
Explanation:
You can be in love at the same time with two different people and the explanation is that you like two different types