List of top Biology Questions

Select the correct sequence of organs in the alimentary canal of cockroach starting from mouth:

Phloem in gymnosperms lacks :

Which one of the following equipments is essentially required for growing microbes on a large scale, for industrial production of enzymes?

Which of the following ecological pyramids is generally inverted?

What is the genetic disorder in which an individual has an overall masculine development, gynaecomastia, and is sterile?

Which of the following muscular disorders is inherited?

Expressed Sequence Tags (ESTs) refers to:

Match the Column -I with Column-II:

	COLUMN I		COLUMN II
a	P-wave	i	Depolarisation of ventricles
b	QRS complex	ii	Repolarisation of ventricles
c	T-wave	iii	Coronary ischemia
d	Reduction in the of size of T-wave	iv	Depolarisation of atria
		v	Repolarisation of atria

Select the correct option.

The Earth Summit held in Rio de Janeiro in 1992 was called:

Match the hominids with their correct brain size:

a	Homo habilis	i	900 cc
b	Homo neanderthalensis	ii	1350 cc
c	Homo erectus	iii	650-800 cc
d	Homo sapiens	iv	1400 cc

Select the correct option. 

Xylem translocates:

Which of the following is true for Golden rice?

Select the hormone-releasing Intra-Uterine Devices.

Select the incorrect statement.

What is the site of perception of photoperiod necessary for induction of flowering in plants?

Colostrum, the yellowish fluid, secreted by mother during the initial days of lactation is very essential to impart immunity to the newborn infants because it contains:

Tidal Volume and Expiratory Reserve Volume of an athlete is 500 mL and 1000 mL respectively. What will be his Expiratory Capacity if the Residual Volume is 1200 mL?

Extrusion of second polar body from egg nucleus occurs:

Which of these following methods is the most suitable for disposal of nuclear waste?

A What map unit (Centimorgan) is adopted in the construction of genetic maps?

Purines found both in DNA and RNA are:

Which of the following statements is not correct?

Grass leaves curl inwards during very dry weather. Select the most appropriate reason from the following:

Which of the following glucose transporters is insulin-dependent?

Placentation, in which ovules develop on the inner wall of the ovary or in peripheral part, is: