List of practice Questions

Draw a neat diagram of the conducting system of human heart and label AV node, Bundle of His, and Purkinje fibres.
What is biofortification?
Mention one example each of fortification with reference to –
a. Amino acid content
b. Vitamin-C content
Define the terms:
Genetic drift
Homologous organs
What is ex-situ conservation?
Mention any two places where the ex-situ conservation is undertaken.
A child has low BMR, delayed puberty and mental retardation. Identify the disease.

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

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.
Define the terms:
a. Gross Primary Productivity
b. Net Primary Productivity
Draw a neat diagram of thyroid gland and label thyroid follicle, follicular cells, and blood capillaries.
Give reason – ABA is also known as antitranspirant.
Explain the role of chlorophyllase enzyme in banana.
Calcium and Phosphate ions are balanced between blood and other tissues by ______.
Identify the INCORRECT statement.
Which of the following is a hormone releasing contraceptive?
Which disease is caused by HPV?
Which device is used to clean both dust and gases from polluted air?
Mention the name of sterile animal produced by intergeneric hybridisation.
Give the name of first transgenic plant.
Histones are rich in _______.
How many mitotic divisions take place during the formation of a female gametophyte from a functional megaspore?
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 _______.
Rivet Popper Hypothesis is an analogy to explain the significance of _______.
Which of the following group shows ZW-ZZ type of sex determination?
In Hamburger’s phenomenon, _______.