Which of the following gland is often referred in relation with AIDS
Thyroid
Thymus
Adrenal
Pancreas
B.
Thymus
The thymus gland, which plays a key role in the maturation and functioning of the lymphoid system, is implicated in the acquired immune deficiency syndrome (AIDS). The observation that the thymic hormone, thymosin α1, is elevated in individuals at risk for AIDS (as opposed to being depressed in other immunodeficient states) has provided the first direct evidence that the thymus is malfunctioning early in the course of this deadly disease.
Human sperm was discovered by
Leeuwenhoek
Aristotle
Graaf
Pander
A.
Leeuwenhoek
Spermwere first observed in 1677 by Antonie van Leeuwenhoek using a microscope, he described them as being animalcules (little animals), probably due to his belief in preformationism, which thought that eachsperm contained a fully formed but smallhuman.
Kaziranga wild life sanctuary is famous for
tiger
musk deer
elephant
rhino
D.
rhino
Rhinoceros (rhino) are protected in Kaziranga sanctuary at Sibsagar, Jorhat in Assam which was started in 1987.
The famous 'Chipko Movement' was started by
Bahuguna
Rajeev Gandhi
Indira Gandhi
Salim Ali
A.
Bahuguna
Sunderlal Bahuguna(born 9 January 1927)is a noted Garhwalienvironmentalist and Chipko movement leader. The idea of Chipko movement was of his wife and the action was taken by him. For years he has been fighting for the preservation of forests in the Himalayas,first as a member of the Chipko movementin the 1970s, and later spearheaded the Anti-Tehri Dammovement starting 1980s, to early 2004.
Koch's postulates are not applicable to
TB
leprosy
cholera
diphtheria
B.
leprosy
Koch's postulates are not applicable to leprosy because the causative agent of leprosy, Mycobacterium leprae has never been grown on artificial media.
Soil carried by gravity is
alluvial
eolian
colluvial
glacial
C.
colluvial
Colluvial soil is transported by gravity, alluvial soil is transported by water, eolian soil istransported by wind and glacial soil is transported by glaciers ie, large ice pieces.
Noncleidoic eggs occur in
birds
fish
reptiles
platypus
A.
birds
Non Cleidoic egg-Eggmembranes are soft in theseeggse.g. All viviparous animals and in oviparous animals which layseggsin water.
The pioneer country in the production of fuel alcohol is
Saudi Arabia
Iran, Iraq
Brazil
Japan
C.
Brazil
Brazil is the Pioneer country in the production of fuel alcohol, which is used in automobiles like cars, buses and motorcycles as a substitute of petroleum.
Most simple amino acid is
lysine
glycine
aspartic acid
nucleic acid
B.
glycine
Glycineis the amino acid that has a single hydrogen atom as its side chain. It is the simplest possible amino acid. The chemical formula ofglycineis NH2‐CH2‐COOH. Glycineis one of the proteinogenic amino acids, and is notable as the only one that is achiral.
Long fibres of cotton seed are known as
coir
fuzz
lint
flax
C.
lint
Long fibres of cotton are called lint and small fibres are called fuzz. Lint are extractable while fuzz are non-extractable