List of top Biology Questions

New plants grown up by using the tip of a plant is known as:
Which acid is produced in our stomach ?

Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R

Assertion (A) : 02 is liberated in the non-cyclic photophosphorylation.

Reason (R) : Liberation of oxygen is due to photolysis of water.

In the light of the above statements, choose the correct answer from the options given below

The accompanying diagram shows the changes that take place in the endometrium during a normal menstrual cycle. Identify the changes and select the correct option.
A person shows symptoms like Sneezing, Watery eyes, running nose and difficulty in breathing, on exposure to certain substances in air. Which type of antibody is produced during such condition?
Cells in the quiescent stage $(G_0)$
In a species, the weight of newborn ranges from 2 to 5 kg. 97% of the newborn with an average weight between 3 to 3.3 kg survive whereas 99% of the infants born with weights from 2 to 2.5 kg or 4.5 to 5 kg die. Which type of selection process is taking place?
According to Human Genome Project (HGP), the total number of genes in human genome is estimated at 30,000 the number of genes present on Y-chromosome are
Which gas is present predominantly in biogas
Acid rain mainly result from
Animal pharming can be defined as
Which of the following waste include mixture of biodegradable and non biodegradable waste?
Dinosaurs were abundant in
Right auricle of the mammalian heart release blood through
Lysozyme :
A genetically engineered microorganism used successfully in bioremediation of oil spills is a species of
Digested food material is absorbed and taken to liver by
Chronic Obstructive Lung Disease (COLD) is a condition due to
First vitamin to be produced through fermentation process using a wild bacterium was
The following are true about culture media for microbes:
Dark respiration is the function of
Genetically modified crops can be produced by
Maximal application of animal cell culture techniques is in the production of
The most quickly available source of nitrogen to plants are
One of the major difficulties in the biological control of insect pest is that