Principle of Inheritance and VariationHard
Question
What is true about the isolated small tribal populations?
Options
A.There is a decline in populations as boys marry girls only from their own tribe
B.Hereditary diseases like colour blindness do not spread in the isolated population
C.Wrestlers who develop strong body muscles in their life time pass this character on to their progeny
D.There is ano change in population size as they have a large genr pool
Solution
Populations can be defined as a grous or assemblage of organisms of the asme species that live at a given time in a particular area. In human beings a dominant X-linked gene is necessary for formation of colour sensitive cells the cones. in the retina of eye. The recessive form of this gene is incapable of producing the colour sensitive cones and homozygous recessive frmale and hemizygous recessive males are unable to distinguish between these teo colours. As the isolated population do not have any hereditary diseases like colourblindness, so they do not spread accordingly.
According to theory of inheritance of acquired characters of Lamarck the Wrestlers, who develop strong body muscles in their life time, must pass this character onto thrir progeny, but this is not found true.
Gene pool is defined as sum total of genes present in a Mendelian population . The study of gene pool tells us the total number of genes, their kinds and variety present in the population.
According to theory of inheritance of acquired characters of Lamarck the Wrestlers, who develop strong body muscles in their life time, must pass this character onto thrir progeny, but this is not found true.
Gene pool is defined as sum total of genes present in a Mendelian population . The study of gene pool tells us the total number of genes, their kinds and variety present in the population.
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