General Knowledge Questions

Random mutations are the ultimate source of genetic variation. Mutations are likely to be rare and most mutations are neutral or deleterious, but in some instances, the new alleles can be favored by natural selection. Polyploidy is an example of chromosomal mutation.

Mutations are changes in the DNA. A single mutation can have a large effect.

1) mutation - an alteration in DNA sequence, various types

2) intragenic recombination - results in entirely new associations of genes not present in either parental genome.

Two forms of intragenic recombination:

a) crossing over
b) independent assortment
3) reticulation – acquisition of genetic material from unrelated or relatively unrelated sources (e.g., hybrid species, horizontal gene transfer).

The olfactory system is the only system in which the receptors send their signal directly to the higher brain and bypass the thalamus, which normally acts as a filter for the processes of the lower brain.

• The Habeas Corpus writ is issued to produce a person who has been detained, whether in prison or in private custody, before a court and to release him if such detention is found illegal.

• The right to habeas corpus has been used by the Indian judiciary effectively only in order to secure the release of a person from illegal detention.

• If the detained person is unable to seek the writ of habeas corpus, someone else mayact so on his behalf.

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