List of top Biology Questions

The term starch sheath is used for endodermis of
Bulliform,large sized ,vacuolate motor cells occur
In cyanobacterial cell
Heterocysts are specialised for nitrogen fixation as they are
Mineral extraction with the help of bacteria is
Ptomaines are
The most abundant microorganisms are,
The common bacterium of boils which also causes food poisoning is
Red carotenoids help halophiles in
A thermoacidophile of hot sulphur spring is
Anaerobic retting of fibres is carried out by
Copeland created the kingdom of
Vomiting is controlled by
shrivelled face, sunken eye: prominent ribs, thin legs and aram are found in
Hydrophs foetalis develops in case of defective alleles of two $\alpha$ -globin genes
Jacob's or criminal syndrome has a sex chromosome complement of
ZZ/ZW type of sex determination is seen in
In man which of the following genotypes and phenotypes may be the correct result of aneuploidy in sex chromosomes
In sickle cell anaemia 6-valine of $\beta$-chain forms hydrophobic bonds creating helical polymer of $\cdots\cdots\cdots\cdots\cdots$ strands
Cyclosis or cytoplasmic streaming was discovered by
Particle present over 60S ribosome subunit which helps it to attach to surface of E.R. is
With janus Green, mitochondria turn
Pili occur in
Cellulose of cell wall is synthesised by synthetase enzyme located over
Cell wall layer lacking cellulose and containing xylans is