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During this phase the meristematic cells divide to form new cells. Division is restricted to the apical meristems, both at root and shoot tips. The newly formed daughter cells are thin walled and have dense protoplasm. The daughter cells have the same number of chromosomes and t..

Planaria have a strong sense of head and tail. When cut, the anterior cut surface almost always regenerates a new head and the posterior cut surface regenerates tail structures. Planaria is a little half-inch flatworm. It often lives under rocks. It can be cut into, as many as 32 ..

Embryology - It is one of the branches of biology which deals with the formation and development of the embryo. The events from initiation of the flower buds to be full development of the embryo are generally considered under embryology. In the earlier stages of embryo development there is no funda..

This type of cell division occurs in the somatic (body) cells. Here a diploid (2n) parent cell gives rise to two diploid (2n) daughter cells. For the purpose of description mitosis is divided into four stages - Prophase Metaphase Anaphase Telophase It is important to understand that Mitos..

Functions Limits and Continuity - Functions can be added, subtracted and multiplied. They can also be divided where the divisor function does not take the value zero. These operations create new functions.Functions can be added, subtracted and multiplied. They can also be d..

Earlier E. coli was used as a host for the recombinant DNA. Now Bacillus subtilis and yeast are also being used. The bacteria to be used as hosts should be without plasmids. Their wall is made permeable by treatment with calcium chloride or lysozyme. The recombinant DNA is added to the culture in w..

Cell division is a method by which new cells are originated from pre-existing cells. The formation of daughter amoebae in amoeba, the development of sex cells and the growth of a young animal or plant into an adult, all involve cell multiplication. In order to multiply in number, ce..

The plant hydrangea can have pink "flowers" or blue "flowers" (they're actually modified leaves). But we do not classify the two forms as different species. In fact, one could allow a blue-"flowered" plant to become a pink-"flowered" plant just by changing the pH of the soil and the amount of alumi..

Cell plate formationCytokinesis In the plant cell, no constriction appears during Cytokinesis. Instead, the division of the cytoplasm occurs by the formation of a new cell-wall in the middle region. During telophase, new cellulose particles are gradually deposited along the equa..

Two things happen during interphase. First, the DNA doubles itself so that sufficient DNA is made available for each of the two daughter cells. A cell never divides until this new genetic material is formed. Secondly, the cell builds up a sufficiently large store of energy to ca..