List of top Biology Questions

Study the diagram given below and identify the cells labelled as A, B, C and D, and choose the correct option
The fourth cleavage plane during development of frog's egg is
Read the statements given below and identify the incorrect statement.
Secondary cortex is also known as :
Sexually transmitted disease that can affect both the male and female genitals and may damage eyes of babies born of infected mothers is
Which is the cutting organ in the mouth parts of cockroach ?
Identify the sense codon from the following :
Ribosomal RNA is actively synthesized in
The given figure is the representation of a certain event at a particular stage of a type of cell division. Which is this stage?
A gymnosperm lacking archegonium is
Monascus purpureus is yeast used commercially in production of
A characteristic of Cycas that resembles ferns is:
A biodegradable pollutant is:
Life cycle of Saccharomyces cerevisiae is:
The charge on the outer side of neuron is
1200 ml of air remaining in lungs even after forceful expiration is
Which statement is wrong for viruses?
In the five kingdom classification, Chlamydomonas and Chlorella have been included in
In which one of the following the genus name its two characters and its phylum are not correctly matched, whereas the remaining three are correct
Genus name Characters Phylum
(a) Pila (i) Body segmented
(ii) Mouth with radula 		Mollusca
(b) Asterias (i) Spiny skinned
(ii) Water vascularsystem 		Echinodermata
(c) Sycon (i) Pore bearing
(ii) Canal system 		Porifera
(d) Periplaneta (i) Jointed appendages
(ii) Chitinous exoskeleton 		Arthropoda
Which one of the following pairs of animals are similar to each other for the feature stated against them?
Pteridophytes are called vascular cryptogams, because they are non-seeded plants containing:
The host for Cercospora personata belongs to this family of angiosperms :
The blood vessel which supply oxygenated blood to cardiac tissue is
Internodes elongation is due to
Diabetes mellitus is caused due to