List of top Biology Questions

Conversion of milk to curd improves its nutritional value by increasing the amount of

The transparent lens in the human eye is held in its place by

Which of the following characteristics represent ‘Inheritance of blood groups’ in humans ?
a. Dominance
b. Co-dominance
c. Multiple allele
d. Incomplete dominance
e. Polygenic inheritance

Which of the following hormones can play a significant role in osteoporosis ?

Which of the following is not an autoimmune disease ?

In which disease does mosquito transmitted pathogen cause chronic inflammation of lymphatic s ?

Among the following sets of examples for divergent evolution, select the incorrect option :

After karyogamy followed by meiosis, spores are produced exogenously in

Winged pollen grains are present in

Which of the following structures or regions is incorrectly paired with its function ?

Match the items given in Column I with those in Column II and select the correct option given below :

Column I		Column II
a.	Herbarium	i.	It is a place having a collection of preserved plants and animals.
b.	Key	ii.	A list that enumerates methodically all the species found in an area with brief description aiding identification.
c.	Museum	iii.	Is a place where dried and pressed plant specimens mounted on sheets are kept.
d.	Catalogue	iv.	A booklet containing a list of characters and their alternates which are helpful in identification of various taxa.

In which of the following forms is iron absorbed by plants ?

Double fertilization is

Pollen grains can be stored for several years in liquid nitrogen having a temperature of

Which one of the following plants shows a very close relationship with a species of moth, where none of the two can complete its life cycle without the other ?

Which of the following elements is responsible for maintaining turgor in cells ?

Stomata in grass leaf are

Oxygen is not produced during photosynthesis by

What is the role of NAD⁺ in cellular respiration ?

Which of the following is true for nucleolus ?

The stage during which separation of the paired homologous chromosomes begins is

The two functional groups characteristic of sugars are

Stomatal movement is not affected by