List of top Biology Questions

Barr body are associated with
The two cotyledons in the seed are often referred to as the embryonic leaves. The embryo contains radicle and plumule.
The megaspore mother cell undergoes mitosis to produce four megaspores. Megaspore mother cells and the megaspores are both haploid.
The collenchyma is a thick walled living tissue. The collenchyma is thickened due to the deposition of pectin.
Systematics is the branch of biology that deals with classification of living organism. The aim of classification is to group the organisms in an orderly manner.
Lateral line system is found in fishes and aquatic larval amphibians. Lateral line system has receptors which are the clusters of sensory cells derived from ectoderm.
Clones are a group of organisms of identical genotype, produced by a single parent through asexual means. Clones exhibit high genetic variations.
If a homozygous red-flowered plant is crossed with a homozygous white-flowered plant, the offsprings will be
If turgor pressure becomes equal to the wall pressure, then
Which of the following structures helps in the respiration of lichens?
Passage cells are found in
The sites of the first, second and third moulting of the Ascaris larva are respectively
Adults of Wuchereria bancrofti attacks
Which of the following Phyla are included in Enterozoa?
In Entamoeba histolytica, the presence of chromatid bodies is characteristic of
Ambulacral grooves are absent in the living forms of the Class
Which of the following are uricotelic animals?
Which of the following is absent in polluted water:-
Vessels are found in :-
Jacob and Monad studied lactose metabolism in E. coli and proposed operon concept. Operon concept is applicable for:-
In fluid mosaic model of plasma membrane
Which of the following are homologous organs?
In human body urea is produced as an excretory product in the:
In a population, unrestricted reproductive capacity is called:
Among the following monosomic aneuploid is: