Tag Archives | Cytology

Cytological Slides and Specimens | Cytology

In this article we will discuss about some cytological slides and specimen. 1. B-Chromosome or Supernumerary Chromosome: i. The nuclei of some animals or plants contain one or more chromosomes in addition to normal chromosomes. These additional chromosomes are called B-chromosomes or supernumerary chromosomes. ii. First described by Wilson in 1905 in Metapodius, an insect, these chromosomes have now been [...]

By |2016-10-20T07:46:24+00:00October 20, 2016|Cytology|Comments Off on Cytological Slides and Specimens | Cytology

6 Main Cell Organelles of Protoplasm | Cytology

The following points highlight the six main cell organelles of protoplasm. The cell organelles are: 1. Chloroplast 2. Mitochondria 3. Golgi Apparatus 4. Nucleus 5. Endoplasmic Reticulum 6. DNA Model. Cell Organelle # 1. Chloroplast: 1. Chloroplasts (Figs. 18, 19), responsible for the photosynthesis of the plants, are the characteristic features of the cells of green plants. 2. Around the [...]

By |2016-10-20T07:46:24+00:00October 20, 2016|Cytology|Comments Off on 6 Main Cell Organelles of Protoplasm | Cytology

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)
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