Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Define Historical Example Population genetic theory?
Population genetic theory, first developed by Sir Ronald Fisher, JBS Haldane and Sewall Wright, demonstrated how several evolutionary and demographic forces will influence levels of genetic variation in a population. Whereas mutation increases genetic variation, random genetic drift removes it. The strength of drift is proportion to the opposite of the effective population size (Wright 1931). So, population genetic theory predicts that genetic variation within a population should increase along with population size.
If population sizes fluctuate over time, the long-term average effective population size is more sensitive to the lower population sizes as compared to the higher ones. For instance, consider an insect population that over the course of each year undergoes three generations with population sizes of 10, 100 and 1000. Were it to frequently fluctuate among these three population sizes, its effective population size would be approximately 30-- far lower than the arithmetic mean of 370. So, periodic bottlenecks in population size will sharply decrease the effective population size and therefore genetic variance.
What are the characteristics of cardiac muscle that allow it to be highly resistant to fatifue?
Q. Why does thymine replace uracil in DNA? The difference between DNA and RNA is existence of a hydroxyl (-OH) group on 2' carbon of the ribose sugar in the backbone. Removal o
Q. What are the classes of lipoproteins in the blood? Blood lipids (cholesterol, triglycerides and phospholipids) being insoluble in blood need a ship to travel in our body; it
How Viruses Multiply? Obligatory parasitism - Outside cells viruses are nonliving, inactive particles but after entering into live cells these multiply fast by replication
Chlorophyll Chlorophyll, the pigment responsible for giving bright green colour to the vegetables, is very unstable and undergoes changes in colour which are often considered t
How sugar is used in Icings? Sugars provide sweetness, flavor, bulk and structure to icings and frostings. In addition to sweetness and flavor, icings also function as a barrie
Economic Significance - Conservation of Wildlife Certain wild species are important because of their actual or potential economic value to people. Wildlife resources provide p
Explain the Nutritional Management of Eating Disorders? Good nutritional management of patients with eating disorders requires attention to a number of areas. It is important t
Use of Spectinomycin in Pregnancy Spectinomycin (Trobicin) can be used to treat pregnant women allergic to beta-lactam antibiotics, but is unreliable against pharyngeal gonoco
A carbohydrate is composed of carbon (carbo-), and hydrogen and oxygen (-hydrate). The easiest carbohydrates are the monosaccharides that have the common formula (C
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd