List of top Biology Questions asked in AIIMS

The process of the escape of liquid from the tip of uninjured leaf is called

Phytotron is a device by which

Which type of cancer is found in lymph nodes and spleen?

Which of the following terms is not concerned with genetic recombination in bacteria ?

The term chromatophore was coined by

The plant material, which is widely used in the preparation of culture medium, is

Pacinian corpuscles occur in the skin of certain parts of body in mammals. These are

Secretion of which of the following is under neurosecretory nerve axons?

The chief function of phloem is the conduction of

Addison?? disease results from

The secretory immunoglobulin present in the colostrum of mother is

Potato is included in solanaceae family because

To yield milk, cow is given

Which of the following is the largest and edible bud?

Which of the following prevents the photo-oxidation and destruction of pigments ?

Preparation of sperm before penetration of ovum is

How much amount of oxygen is present in one gram of haemoglobin?

Genes present on Y-chromosome are called

Plasmids are single-stranded extra-chromosomal DNA. Plasmids are possessed by eukaryotic cells.

In the descending limb of loops of Henle, the urine is hypertonic, while in ascending limb of loops of Henle, the urine is hypotonic. Descending limb is impermeable to Na , while ascending limb is impermeable to HO.

Chloragogen cells of earthworm are similar to the vertebrate organ

Ora serrata is

The disorders such as alkaptonuria and phenylketonuria are refered to as

There is an irregular mating population. If the frequency of an autosomal recessive lethal gene is 0.4, then the frequency of the carriers in a population of 200 individuals is

The branch of biology dealing with the process of improvement of human race by selective breeding is called