List of top Biology Questions

Phloem sap contains

When a plant part undergoes sensence, the nurients may be

In guard cells, starch gets hydrolysed under condition of

Opening of stomata requires

In contact with moisture dry cobalt chloride paper turns

Who proved that upward transport of minerals occurs through xylem

Imbibition pressure develops due to

Units of water transpired by a plant for synthesis of one unit of dry matter is called

A cell's division time is $1$ minute. In $20$ minutes, a culture tube (culture medium) is $1/8^{th}$ filled with cells. When the tube will be fully filled?

Which is synthesised in G phase ?

At which stage of meiosis does the genetic constitution of gametes is finally decided ?

Mitosis is characterised by

Chromomeres are distinguishable during

In oocytes, diplotene chromosomes decondense and elongate to form

Tolophase I does not occur in

Meiosis results in

Populations connected dispersing individuals constitute

Which one accompanies shark without attaching to it

Biotrophs are

Camouflage is shown by

Articular cartilage is

Blinking of eyes is performed by

Chordotonal or hearing organs occur in Cockroach over

A bipolar neuron has

An epithelium having different ploidy in different layers is