AIEEE Questions

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Parvovirus B19 causes severe anemia because it preferentially infects erythrocyte precursors.

a. Parvovirus B19 binds preferentially to the erythrocyte blood group P antigen on erythroid precursor cells.

Answers B, C, D are incorrect:

b. after entry the single-stranded viral DNA genome is transported to the cell nucleus where the host DNA polymerase synthesizes the complimentary DNA strand.

c. Parvovirus B19 infection can be diagnosed by direct detection of viral DNA not RNA.

d. the fetus of a seropositive mother is protected from infection by maternal circulating antibodies.

Ribosomes are the sites where proteins are synthesised. The transcription process where the code of the DNA is copied occurs in nucleus but the main process of translating that code to form other protein occurs in ribosomes.

Antipsychotic drugs have proved helpful in the treatment of schizophrenia and other psychotic disorders, inhibits dopamine, reduces delusions, hallucinations, thought disorganization.

In India, country's 1st Owl Festival held in Pune, for two days i.e, on Nov 29 and Nov 30. It is a first-of-its-kind festival in the country that is being organised with the intention of creating awareness about owl as a bird and debunking numerous superstitions associated with it.

Geography is a field of science related to the study of the lands, places, relation between people & their environments. Geography can be understood in terms of five different themes. They are :

• Location
• Place
• Human-Environment Interaction (HEI)
• Movement
• Region.