List of top Biology Questions

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 one is parasitic algae?
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?
What is acrosomal reaction?
The H-zone in the skeletal muscle fibre is due to
The given figures are types of elements (A and B) which constitute one type of complex tissue (c) of a plant . Identify A, B and C.
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?
Peyer's patches are present in
Oxyntic cells are located in
In frog, mesorchium is a thin fold of membrane extending between
Golgi apparatus is absent in
Glycosylation of proteins is done by
Eye spot is seen in
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.
Respiratory pathway is an amphibolic pathway. In respiration, there is breakdown of many substances (catabolism) and synthesis of many substances (anabolism) by respiratory intermediates.
Net primary productivity is gross primary productivity minus respiration. Secondary productivity is produced by heterotrophs.
Colpa aurea is a specialised pollinating agent of orchid Ophrys speculum. Male Colpa mistakes the Ophrys flower for female wasp to copulate with it.
Auerbach?? plexus controls the secretion of intestinal juice. Meissner?? plexus controls the peristalsis in alimentary canal.