List of practice Questions

Draw a neat labelled diagram of a dicotyledonous embryo.
Describe the role of animals in pollination.
How do biofertilizers increase the fertility of the soil?
What is incomplete dominance? Explain with examples.
Write the name of any one disease caused by mosquitoes and describe its control measures.
Write the names of four nucleotide units of DNA.
Which enzyme breaks the DNA molecule?
Name any two biodiversity hot spots.
Describe Mendelian disorder in detail.
Explain DNA fingerprinting and its uses.
Write a note on Australopithecines.
Describe in detail how microbes can be used to decrease the use of chemical fertilizers and pesticides.
Describe the food chain with a diagram.
What do you mean by the Central Dogma of Molecular Biology?
The number of chromosomes in male drone of honeybee is:
Genetic substance of virus is:
Congenital metabolic disorder is:
Write the zoological name of the causative agent of Filaria disease.
What is the function of Sertoli cells in human testes?
Choose the correct option and write in your answer-book :
The cells of endosperm are:
The equation of the curve passing through \( (1, 0) \) and which has slope \( \left( 1 + \frac{y}{x} \right) \) at \( (x, y) \), is:
The general solution of the differential equation \( (x + y)^2 \frac{dy}{dx} = 1 \) is:
The solution of the differential equation \( x + y \frac{dy}{dx} = 0 \), given that at \( x = 0 \), \( y = 5 \), is:
The order and degree of the following differential equation: \( \frac{d^2 y}{dx^2} - 2x = \sqrt{y} + \frac{dy}{dx} \), respectively, are:
The area of the region bounded by the curve \( y = 3x^2 \) and the x-axis, between \( x = -1 \) and \( x = 1 \), is: