List of top Biology Questions asked in AIIMS

Animal of which phylum have hooks and suckers and are endoparasite on other animals

A person may be a haemophilic, only if his mother is a carrier or colourblind. The male parent cannot pass on a sex-linked gene to his son.

Companion cells are associated with

Citrus canker is caused by

Ploidy of endothecium, microspore mother cell, tapetum and microspore is respectively,

The endosperm in gymnosperm is formed after fertilisation. The endosperm of gymnosperm is formed by triple fusion.

Thermococcus, Methanococcus and Methanobacterium exemplify

The saturation point of CO in C plants is

Select the correct matching.

Purkinje fibres are present in

Which of the following is/are free living nitrogen fixers?

Which of the following is correct for the given floral diagrams?

Which of the following is not a bioassay for cytokinins?

Which of the following is not a characteristic of meiosis?

Which of the following disorders are caused due to recessive autosomal mutations?

When red and white flowered Mirabilis plants are crossed all pink flowers are seen in F generation. When F progeny is selfed, the expected phenotypic and genotypic ratios are

What is diapedesis?

The amphids are cuticular elevations on the ventrolateral lips of Ascaris. These are

Refer to the given figure of T.S. of penis. How will penile function be altered if the blood supply to the B is impaired?

In frog, mesorchium is a thin fold of membrane extending between

Golgi apparatus is absent in

Glycosylation of proteins is done by

Diagrams of hypogynous, perigynous and epigynous flowers are given below. Find out the option that correctly exemplifies A, B, C and D.

Developing spermatozoa receive nutrition from

Transpiration occurs only when stomata are open. Transpiration occurs only through stomata.