List of top Biology Questions

Select the correct group of biocontrol agents.

Concanavalin A is:(1) an alkaloid (2) an essential oil (3) a lectin (4) a pigment

Which of the following features of genetic code does allow bacteria to produce human insulin by recombinant DNA technology?

Which of the following pair of organelles does not contain DNA?

Which of the following statements is incorrect?

Which of the following protocols did aim for reducing emission of chlorofluorocarbons into the atmosphere?

The correct sequence of phases of cell cycle is:

Which one of the following statements regarding post-fertilization development in flowering plants is incorrect?

Consider following features:
(a) Organ system level of organisation
(b) Bilateral symmetry 
(c) True coelomates with segmentation of body 
Select the correct option of animal groups which possess all the above characteristics.

From evolutionary point of view, retention of the female gametophyte with developing young embryo on the parent sporophyte for some time, is first observed in:

Respiratory Quotient (RQ) value of tripalmitinis:

The ciliated epithelial cells are required to move particles or mucus in a specific direction. In humans, these cells are mainly present in:

It takes very long time for pineapple plante to produce flowers. Which combination of hormones can be applied to artificially induce flowering in pineapple plants throughout the year to increase yield?

Which of the following immune responses is responsible for rejection of kidney graft?

Thiobacillus is a group of bacteria helpful in carrying out:

Phloem in gymnosperms lacks :

What is the direction of movement of sugars in phloem?

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

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 muscular disorders is inherited?

Expressed Sequence Tags (ESTs) refers to:

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?

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. 

Select the incorrect statement.