Overproduction of which of the following neurotransmitters has been associated with the mental disorder Schizophrenia?

In sex linkage, the speciality is

The contraction and relaxation phases of a muscle constitute

Milk tastes sour when kept in the open for sometime due to formation of

Who among the following was given the Nobel prize in 1971 for deciphering the action of hormones?

Which one of the following is genetically dominant trait in humans?

Amphids found upon lips of Ascaris

A type of hypersensitivity to an allergen in which IgE antibodies attach to mast cells and basophils and may result in circulatory shock and asphyxia, is called

Maggot is the larva of

Which of the following is used to capture food in sponges?

Which of the following is glycosaminoglycan product of mast cells, which acts as anticoagulant?

A powerful eye irritant present in smog is

The Ames test refers to a test

By which of the following processes, the absorbed food material is converted into the complex molecules making up the organism?

The part of brain which is directly concerned with the control of heart is

Prehensile tail is present in

A person has brown eyes, black eyes or blue eyes depending upon the particular pigment present in the

The cranial capacity of Java ape man was about

Polio-immunising vaccine was developed by

Silk contains a protein known as

Some animals have a unique method of bringing oxygen directly to the body cells. These are

Widal test is used for the susceptibility of

The excreta of lizards and birds contains a white component, which is chemically

Epstein-Barr virus is related with

Which one of the following shows a taxonomically closely-related group?