revolution

a. It produces new individuals having new combinations of traits. b. Crossing over has helped in establishing the concept of linear arrangement of genes. c. The frequency of crossing over helps in the mapping of chromosomes. i.e., determining the location of the genes in the chromosomes. d. Selecti..

It refers to culture or growing the plant tissues. Plant tissue culture is developed as a separate branch of science - ever since the potentiality of each cell or tissue of plant to grow into a separate organism has been recognised. Tissue culture technique has opened up new opportunities in ..

Differentiation deals with the rate of change while integration deals with the total change. The definite integrals are evaluated in problems relating to plane, areas, areas and volumes of solid of revolution etc. In this chapter, we confine ourselves to properties of definite int..

Niels Bohr suggested that the problem about hydrogen spectrum can be solved if we can make some assumptions. According to classical theory, the frequency of the electromagnetic waves emitted by a revolving electron is equal to the frequency of revolution. As the electrons radiate energy, ..

In the Bohr model of the hydrogen atom the electron revolves around the nucleus in a path of radius 5.1 x 10 - 1 1 m at a frequency of 6.8 x 10 1 5 revolution per second. What is the value of magnetic field at the center of the orbi..

Question: What is the cause of over exploitation of natural resources? Answer: To meet the demands of increasing population, the land is continuously be cleared and converted to grow more food up and to make dwelling places. The industrial and technological revolution and conse..

Sources of Hydrocarbons - Until the early years of the nineteenth century, only the plants and animals were the known sources of organic compounds. With the advent of the Industrial Revolution in Europe, fossil fuels like coal and petroleum gained prominence as the sources of organic comp..

Bohr's Theory of Hydrogen Atom - Niels Bohr suggested that the problem about hydrogen spectrum can be solved if we can make some assumptions. According to classical theory, the frequency of the electromagnetic waves emitted by a revolving electron is equal to the frequency of revolution. ..

Varietal Improvement - There are several varieties of rice available in the market. Similarly, there are many varieties of mangoes and brinjals. Each variety is unique in its colour, size, shape and taste. Thus, one type of plant has many varieties. A lot of research has gone into creating these va..

To measure an angle we shall use two kinds of units, the degree unit and the radian unit. A degree(Sexagesimal system) is defined to be an angle formed by half-line (or a ray) rotated about its end point (1/360) of a complete revolution. Types of Angles: Acute angle, Obt..