List of top Biology Questions

Which one of the following is not a gaseous biogeochemical cycle in the ecosystem?
MAB stands for :
Which of the following is an example of imbibition ?
Which of the following is an autoimmune disorder
Which of the following is cultivated through vegetative propagation?
Which of the following is an endangered species of India ?
Which of the following types of organisms occupies more than one trophic level in a pond ecosystem?
In history of biology, human genome project led to the development of :
The nuclear structure observed by Henkings in 50% of the insect sperm after spermatogenesis was
Different parts of a leaf are modified into tendrils which help the plant in climbing up. Identify the type of tendril that is seen in .
Convention on Biodiversity came into force on:
The bulk movement of substances through the conducting or vascular tissues of plants is called:
The middleman between blood and tissues is:
Which additives are used for the purpose of restoring nutrients lost or degraded during production?
Absence of oxygen in earth, made the atmosphere reducing. But it later became oxidizing in nature due to the emergence of ________.
The black pigment in the eye which reduces the internal reflection is located in:
Which of the following nerves arises from the organ of Corti?
The maximum percentage of polyunsaturated fatty acid present in:
When two unrelated individuals or lines are crossed, the performance of F1 hybrid in often superior to both of its parents. This phenomenon is called ________.
The overall goal of glycolysis, Krebs cycle an electron transport system is the formation of ____________ .
The arrangement of flowers on the flora axis is known as:
Direction: Read the following statements and answer wrong statements.1. Nitrogenous base is linked to pentose sugar through an N-glycosidic bond.2. Phosphate group is linked to 5'-OH of a pentose sugar through phosphoester bond.3. Two nucleosides are linked through a 3'- 5' N-glycosidic bond.4. Negatively charged DNA is wrapped around positively charged histone octamer to form the nucleosome.5. The chromatin that is more densely packed and stains dark is called euchromatin.
The high energy radiations, salts of heavy metals, CO and protein poisons like cyanides, make protein inactive by
Which of the following statements is/are correct?a. Genes are thread-like structures in the nucleus of a cell formed of DNA, which carries the chromosomes.b. The dominant gene decides the appearance of an organism even in the presence of an alternative gene.c. The recessive gene decides the appearance of a person in the absence of the dominant gene.
The inter-atrial septum in the human heart can be best described as: