Tag Archives | Cytogenetics

Bacteria Cell: Meaning and Structure (With Diagram)

In this article we will discuss about the subject-matter and structure of Bacteria Cell.  Meaning of the Bacteria Cell: The bacteria are unicellular, achlorophyllous prokaryotic micro-organisms leading either saprophytic or parasitic mode of life. An average bacterial cell may measure 1.25 μ in diameter. The smallest among the known bacteria is dialister pneumosintes (0.15 to 0.3 μ in length) and [...]

By |2016-07-12T13:56:00+00:00July 12, 2016|Bacteria|Comments Off on Bacteria Cell: Meaning and Structure (With Diagram)

4 Major Phases of the Cell Cycle (With Diagram)

The following points highlight the four major phases of the cell cycle. The phases are: 1. G1 (gap1) phase 2. S (synthesis) phase 3. G2 (gap 2) phase 4. M (mitosis) phase. Cell Cycle: Phase # 1. G1 Phase: The G1 phase is set in immediately after the cell division. It is characterised by a change in the chromosome from [...]

By |2016-07-12T13:55:59+00:00July 12, 2016|Cell Cycle|Comments Off on 4 Major Phases of the Cell Cycle (With Diagram)

5 Main Classes of Chemical Compounds in Chromatin

The following points highlight the five main classes of chemical compounds in chromatin. The classes are: 1. Nucleic acids 2. Basic proteins or histones (protamines in sperm nuclei of some fishes and birds) 3. Acidic proteins (Non-Histones) 4. Lipoproteins 5. Associated inorganic molecules. Chemical Compounds in Chromatin: Class # 1. Nucleic Acids: The nucleic acids are of two types: (i) [...]

By |2016-07-12T13:55:59+00:00July 12, 2016|Nucleic Acid|Comments Off on 5 Main Classes of Chemical Compounds in Chromatin
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