List of top Questions asked in NEET (UG)- 2003

A man throws balls with the same speed vertically upwards one after the other at an interval of $2s$. What should be the speed of the throw so that more than two balls are in the sly at any time? (Given $g = 9.8\, m/s^2$)

The molar heat capacity of water at constant pressure, C, is 75 JK^–1mol^–1. When 1.0 KJ of heat is supplied to 100 g of water which is free to expand, the increase in temperature of water is:

When m-chlorobenzaldehyde is treated with 50% KOH solution, the product(s) obtained is (are) 

Fluoride pollutions mainly affects:

Given below are four matchings of an animal and its kind of respiratory organ:

1. Silver fish – trachea
2. Scorpion – book lung
3. Sea squirt – pharyngeal gills
4. Dolphin – skin

The correct matchings are:
 

Maximum application of animal cell culture technology today is in the production of

Which one of the following is wrong in relation to photorespiration ?

Which one of the following traits of garden pea studied by Mendel was a recessive feature:

Which group of vertebrates comprises the highest number of endangered species:

The genes controlling the seven pea characters studied by Mendel are now known to be located on how many different chromosomes:

When a cluster of genes show linkage behaviour they:

Which one of the following conditions though harmful in itself, is also a potential saviour from a mosquito borne infectious disease:

In which kingdom would you classify the archaea and nitrogen-fixing organism, if the five-kingdom system of classification is used:

Which one of the following statements about viruses is correct:

Mycorrhiza is an example of:

Tobacco mosaic virus is a tubular filament of size:

Stomata of a plant open due to

Which one of the following mineral elements plays an important role in biological nitrogen fixation

The aleurone layer in maize grain is specially rich in

The cells of the quiescent centre are characterised by

Sexual reproduction in Spirogyra is an advanced feature because it shows

Chromosomes in a bacterial cell can be 1–3 in number and:

Two crosses between the same pair of genotypes or phenotypes in which the sources of the gametes are reversed in one cross, is known as:

Phenetic classification is based on:

The following equilibria are given : $N _{2}+3 H _{2} \rightleftharpoons 2 NH _{3}\, K _{1}$ $N2 + O2 \rightleftharpoons 2NO\, K_2$ $H_2 + \frac{1}{2} O_2 \rightleftharpoons H_2 O \, K_3$ The equilibrium constant of the reaction $2NH_3 + \frac{5}{2} O_2 \rightleftharpoons 2NO + 3H_2 O$ in terms of $K_1,\, K_2$ and $K_3$ is