Which lg is produced in primary immune response from Biology NEE

Subject

Biology

Class

NEET Class 12

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 Multiple Choice QuestionsMultiple Choice Questions

41.

the scientific name of Asian Tiger Mosquito

  • Aedes aegypti

  • Aedes albopictus

  • Aedes taeniorhynchus

  • Aedes albolineatus


42.

The size of filtration slits of glomerulus

  • 10 nm

  • 15 nm

  • 20 nm

  • 25 nm


43.

Ornithorhynchus is an example of

  • dinosaur

  • monotreme mammal

  • marsupial mammal

  • eutherian mammal


44.

Name of a gaseous plant hormone is

  • IAA

  • gibberellin

  • ethylenes

  • abscisic acid


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45.

The length of DNA having 23 base pair is

  • 78 Ao 

  • 78.4 Ao.

  • 74.8 Ao 

  • 78.2Ao


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46.

Which lg is produced in primary immune response

  • IgA

  • IgG

  • IgE

  • IgM


D.

IgM

IgM antibodies constitute the major component of the natural antibodies and is also the first class of antibodies produced during a primary antibody response. The IgM-type antibodies differ from other classes of antibodies in that they are predominantly produced by B1 cells, in the absence of apparent stimulation by specific antigens. In addition, IgM antibodies are mostly encoded by germline V gene segments and have low affinities but broad specificites to both foreign and self structures.


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47.

The genetic material of rabies virus is

  • double stranded RNA

  • single stranded RNA

  • double stranded DNA

  • ssDNA


48.

T-lymphocyte is produced in

  • bone marrow

  • spleen

  • pancreas

  • thymus


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49.

Number of nitrogenous bases in a codon is

  • 2

  • 5


50.

A character, which is expressed in a hybrid is called

  • dominant

  • co-dominant

  • recessive

  • epistaticn


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