A pair of corresponding chromosomes of the same shape and size and derived one from each parent.

The organ which produces urea.

Two metallic blocks P and Q having masses in ratio 2:1 are supplied with the same amount of heat. If their temperatures rise by same degree, compare their specific heat capacities.

The diagram given below is that of a developing human foetus. Study the diagram and then answer the questions that follow:

1. Label the parts numbered 1 to 3 in the diagram.
2. Mention any two functions
...

Name the gas that is produced in - Action of cold and dilute nitric acid on copper

A gas of mass 32gms has a volume of 20 litres at S.T.P. Calculate the gram molecular weight of the gas.

Given below is a diagram of a human blood smear.

Study the diagram and answer the questions that follow:

1. Name the components numbered ‘1’ to ‘4’.
2. Mention two structural differences between the parts ‘1’
...

The diagram given below represents a plant cell after being placed in a strong sugar solution. Study the diagram and answer the questions that follow: 

1. What is the state of the cell shown in the
...

A homozygous tall plant (T) bearing red coloured (R) flowers is crossed with a homozygous dwarf (t) plant bearing white (r) flowers:

1. Give the genotype and phenotype of the plants of F₁ generation.
2. Mention the
...

Read the extract given below and answer the questions that follow:

There’s nobody on the house-tops now---
Just a palsied few at the windows set;
For the best of the sight is, all allow,
At the...

(i) Draw a neat labeled diagram of a d.c. motor.

(ii) Write any one use of a d.c. motor.

Name the bill that cannot originate in the Rajya Sabha.

Which one of the following is non-biodegradable

1. DDT
2. Vegetable peel
3. Cardboard
4. Bark of trees

On what grounds can a Supreme Court Judge be removed from office?

Conversion of ethene to ethane is an example of __________ (hydration / hydrogenation).

The polar covalent compound in gaseous state that does not conduct electricity is ______. (carbon tetra chloride, ammonia, methane)