Which of the following statement is correct? 

A. Darwin, theory of natural selection based on better-adapted organisms would acquire more resources and leave more offspring.

B. When population sizes become too small, individuals accumulate deleterious (harmful) mutations, and survival of offspring is threatened

C. Inbreeding is more likely to take place in nature when population size becomes very small and the number of mates is limited.

D. Effective population size can be reduced by harem mating structures

E. The movement of a few individuals between populations can counteract the effects of genetic drift

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#Question id: 12689

#General Aptitude

The ratio of the area of a squareto that of the square drawn on its diagonal is :

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#Question id: 12690

#General Aptitude

From four corners of a square sheet of side 4 cm, four pieces,each in the shape of arc of a circle with radius 2 cm, are cut out.The area of the remaining portion is :

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#Question id: 12691

#General Aptitude

If the area of a rectangle be (x^2 +7x + 10) sq. cm, then one of the possible perimeter of it is

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#Question id: 12692

#General Aptitude

A kite in the shape of a square with a diagonal 32 cm attached an equilateral triangle of the base 8 cm. Approximately how much paper has been used to make it? (Use √3 = 1.732)

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#Question id: 12693

#Unit 8. Inheritance Biology

A panel of cell lines was created by human-mouse cell line hybridization. Each line was examined for the presence of  human chromosome and for the gene production. The following result were obtained;

On the basis of these results, which chromosome has the gene  that encodes the enzyme ?

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#Question id: 12694

#Unit 8. Inheritance Biology

A panel of cell lines was created by human—mouse somatic-cell hybridization. Each line was examined for the presence of human chromosomes and for the production of an enzyme. The following results were obtained: 

On the basis of these results, which chromosome has the gene that encodes the enzyme?