a nucleus contains

. The membrane encloses a clear fluid matrix called nucleoplasm or karyolymph. It encloses a fine network of thread-like structures, called chromatin network. It is composed of chromatin that contain DNA and histones arranged in a specific manner. The chromatin condenses to form distinct ..

This dense, spherical granule found in the nucleus contains RNA (ribonucleic acid) which is responsible for protein synthesis in the cytoplas..

The nucleus contains protons and neutrons collectively called nucleons. It is positively charged. The mass of an atom is concentrated in the nucleus..

Ionic Radius - It is defined as the distance from the centre of the nucleus upto the last shell containing the electro..

The head is almost conical in the human sperm. It is formed of an acrosome and nucleus enclosed in a thin membrane. The acrosome forms a cap at the anterior end of the nucleus. It is formed from the golgi complex. It secrets tissue - dissolving lytic enzymes called hyaluronidase..

Associated with the sieve tube is a small cell containing dense cytoplasm and a large elongated nucleus..

The existence of negative and positive charges on these materials can be explained on the basis of the structure of the atom. Almost all the mass of an atom resides in a central nucleus which contains a number of tightly packed protons and neutrons. As the protons are positively..

Although Rutherford's model was enormously successful at explaining the scattering of alpha particles, there was a problem when the experimental data were used to calculate the mass of the nucleus. From the results of the scattering experiments, it was possible to calculate the char..

The existence of negative and positive charges on these materials can be explained on the basis of the structure of the atom. Almost all the mass of an atom resides in a central nucleus which contains a number of tightly packed protons and neutron..

One of the main ideas in the modified cell principle is that new cells arise from pre-existing cells (Omnis cellula e cellula). Every new cell formed must inherit not only the nucleus which contains the genetic information, but also should inherit the cell organelles that are re..