List of top Biology Questions

Give reason – ABA is also known as antitranspirant.
Explain the role of chlorophyllase enzyme in banana.
Complete the following box with reference to symptoms of mineral deficiency:
Abscission: Pre-mature fall of flowers, fruits and leaves
______: Appearance of green and non-green patches on leaves
Give an example of plant having both kidney and dumb-bell shaped guard cells in stomata.
Draw a neat diagram of thyroid gland and label thyroid follicle, follicular cells, and blood capillaries.
Define the terms:
a. Gross Primary Productivity
b. Net Primary Productivity

Identify ‘A’ in the given graph of population growth.

A child has low BMR, delayed puberty and mental retardation. Identify the disease.
Which disease is caused by HPV?
Which device is used to clean both dust and gases from polluted air?
Identify the INCORRECT statement.
Mention the name of sterile animal produced by intergeneric hybridisation.
Which of the following is a hormone releasing contraceptive?
Calcium and Phosphate ions are balanced between blood and other tissues by ______.
Give the name of first transgenic plant.
Which of the following is the only gaseous plant growth regulator?
The pH of nutrient medium for plant tissue culture is in the range of _______.
Which of the following group shows ZW-ZZ type of sex determination?
How many mitotic divisions take place during the formation of a female gametophyte from a functional megaspore?
In Hamburger’s phenomenon, _______.
Rivet Popper Hypothesis is an analogy to explain the significance of _______.
Histones are rich in _______.

Complete the chart showing human proteins produced by rDNA technology to treat human diseases and re-write. 

Complete the following chart regarding population interaction and re-write: 

 

Complete the following chart regarding energy flow in an Ecosystem and re-write: 

What is blood pressure?