The chromosome of cell duplicate during the

• S-phase of cell cycle

• G₁-phase of cell cycle

• G₂-phase of cell cycle

• Prophase of cell division

Which one of the following hormones is released by the posterior lobe of pituitary gland?

• FSH

• ADH

• ACTH

• MSH

During the transmission of nerve impulse through a nerve fibre, the potential on the inner side of the plasma membrane has which type of electric charge?

• First negative then positive and again back to negative

• First positive than negative and continue to be negative

• First negative then positive and continue to be positive

• First positive then negative and again back to positive

Uric acid is the excretory waste of

• Adult amphibians

• Birds

• Amphibians Larvae

• Mammals

Slime-mould belongs to

• kingdom-Protista

•  Kingdom-Monera

• Kingdom-Fungi

• Kingdom-Plantae

Which one of the following is not a flower?

• Shoe-flower

• Sunflower

• Larkspur

• Water lily

PPLO are smallest cell in the living world. The extend form of PPLO is

• Pseudo Pneumonia Length Orge

• Pseudo Plank Leg Organelle

• Penumonia Plank Like Organism

• Pleuro Penumonia Like Organism

GIFT’ refers to

• Gamete ln vitro Fertilization Technique

• Gamete Inter Fallopian Tube

• Gamete Intra Fallopian Transfer

•  Gamete ln vitro Fertilization Transfer

Which one of the following is not correctly matched?

•  Diphtheria – Corynebacerium

• Elephantiasis – Wuchereria

• Plague – Paramyxo

• Lockjaw – Clostridium

The best description on natural selection is

• The reproductive success of the members of a population best adapted to an environment

• It acts when the resources are unlimited

• A change in the proportion of variations within a population

• It follows Hardy-Weinberg principle