Questions

As per the decision of the GST Council, e-Way Bill system has been rolled out from 1st of April this year (2018).

The given sentence is in simple past. No improvement required.

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.

Plants wilt due to excess of Transpiration.

Europe from Asia are separated by Ural mountains.

At the synapse between two neurons, electrical signals are converted into chemical signals. A synapse is the gap between the two neurons.

Phenol with a molecular formula [C₆H₅OH] is also called as Carbolic Acid. It is a white poisonous clear compound with sweet smell. It is used in making plastics, detergents and drugs.

Protested is used because here the villagers express their feeling by making an objection to what has been done.