Which among these is the correct combination of aquatic mammals? Option 1 : Seals, Dolphins, SharksOption 2 : Dolphins, Seals, TrygonOption 3 : Trygon, Whales, SealsOption 4 : Whales, Dolphins, Seals

Attractants and rewards are required for Option 1 : AnemophilyOption 2 : EntomophilyOption 3 : HydrophilyOption 4 : Cleistogamy

Select the mismatch: Option 1 : Equisetum           HomosporousOption 2 : Pinus                   DioeciousOption 3 : Salvinia               HeteroporousOption 4 : Cycas                  Dioecious

Which of the following are not polymeric? Option 1 : ProteinsOption 2 : PolysaccharidesOption 3 : LipidsOption 4 : Nucleic acids

Myelin sheath is produced by Option 1 : Astrocytes and Schwann cellsOption 2 : Schwann cells and oligodendrocytesOption 3 : Osteoclasts and astrocytesOption 4 : Oligodendrocytes and osteoclasts

The region of biosphere reserve which is legally protected and where no human activity is allowed is known as Option 1 : Core zoneOption 2 : Buffer zoneOption 3 : Transition zoneOption 4 : Restoration zone

During DNA replication, Okazaki fragments are used to elongate Option 1 : The lagging strand towards replication fork.Option 2 : The leading strand away from replication fork.Option 3 : The leading strand towards replication fork.Option 4 : The lagging strand away from the replication fork.

Which of the following components provides sticky character to the bacterial cell? Option 1 : Nuclear membraneOption 2 : Plasma membraneOption 3 : GlycocalyxOption 4 : Cell wall

Which of the following in sewage treatment removes suspended solids? Option 1 : Primary treatmentOption 2 : Secondary treatmentOption 3 : Tertiary treatmentOption 4 : Sludge treatment

The final proof for DNA as the genetic material came from the experiments of Option 1 : GriffithOption 2 : Avery, Macleod and McCartyOption 3 : Hershey and ChaseOption 4 : Har Gobind Khorana