List of top Biology Questions asked in AIIMS

The two critical steps in the evolution of humans were the

In which of the following patterns of viral replication, viruses enter a cell, replicate and then cause the cell to burst, releasing new viruses?

Pythons possess tiny leg bones that serve no purpose in locomotion. Such organs are

This method of finding a gene is used when researchers know very little about the gene they are trying to find. This process results in a complete gene library: a collection of copies of DNA fragments that represent the entire genome of an organism.

Enzyme often have additional parts in their structures that are made up of molecules other than proteins. When this additional chemical part is an organic molecule, it is called

Genetically engineered bovine $(bST)$, sometimes called $rbST$ (recombinant bovine somatotropin) or $rbGH$ (recombinant bovine growth hormone) are used in the

Animals possess nerve networks or nervous systems to respond to their environment. But the single called Amoeba does not possesses any nerve cell, so, how it come to know whether a particle it encounters is a grain of sand and not its dinner ?

A gamete may carry either of the traits but not both. This is Mendel?? second law or law of independent assortment.

Ectophloic siphonostele is found in

The primary protenema of moss by death and decay of cells may break into fragments. Each fragment gives rise to leafy gametophyte.

Which one of the following is correctly matched regarding an institute and its location?

Which of the following sets includes all bacterial disease?

Which one of the following pairs is correctly matched with regard to the codon and the amino acid coded by it?

What is common between chloroplasts, chromoplasts and leucoplasts?

During the life-cycle, Fasciola hepatica (liver fluke) infects its intermediate host and primary host at the following larval stage respectively

Replication and transcription occur in the nucleus but translation occurs in the cytoplasm. m RNA is transferred from the nucleus into the cytoplasm where ribosomes and amino acids are available for protein synthesis.

Nuclear endosperm is formed by subsequent nuclear division without wall formation. Coconut is an example of such endosperm, where the endosperm remains nuclear throughout the development of the fruit.

Maize is an albuminous seed. Endosperm is completely absorbed by its growing embryo.

Interferons are a type of antibodies produced by body cells infected by bacteria. Interferons stimulate inflammation at the site of injury.

In collateral vascular bundles, phloem is situated towards inner side. In monocot stem, cambium is present.

F particles are present in the inner mitochondrial membrane. An electron gradient formed on the inner mitochondrial membrane, forms ATP

Ciliated epithelium is present in the inner lining of trachea and large bronchi. Ciliary movement propel the mucus and foreign particle towards the larynx.

Which one of the following is a matching pair of a drug and its category?

The great barrier reef along the east coast of Australia can be categorized as

A baby has been born with a small tail. It is the case exhibiting