Archaebacteria (Archaea)
Archaebacteria are ancient prokaryotic organisms believed to be among the earliest life forms on Earth. They are mostly extremophiles. General […]
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Eustigmatophyceae
Eustigmatophyceae is a small but important class of unicellular algae, mainly known for their high lipid content and industrial importance
Glaucophyceae (Glaucophytes)
Glaucophyceae is a small, primitive group of freshwater algae that holds great evolutionary significance because it shows a direct link
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STRUCTURAL ALTERATIONS IN CHROMOSOMES
A. Changes Involving Number of Genes i) Deletion or deficiency It signifies the loss or absence of a section of
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NUCLEOLUS AND RIBOSOMAL RNA GENES
Nucleolus Evolution Number and Structure Structure Morphologically nucleolus consists of three regions: Fibrillar regions: Granular regions : Protein region: Chromatin
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MOLECULAR ORGANISATION OF CENTROMERE AND TELOMERE
MOLECULAR ORGANISATION OF CENTROMERE AND TELOMERE Centromere (i) Conserved element I (CDE I): (ii) Conserved element II (CDE II): (iii)
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Nucleosome
Nucleosome Chromatin → Nucleosomal monomers Containing the spacer DNA (160 base pairs) → Core nucleosomes (140 base
CHROMOSOME STRUCTURE
CHROMOSOME STRUCTURE Detailed structure of chromosome Chromatid 1- Sister chromatid 2-Non sister chromatid Chromonema – Centromere/Primary constriction – According to
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CHROMOSOMAL ORGANISATION
CHROMOSOMAL ORGANISATION (Chroma-color, soma-body) Chromosome Numbers At the time of gametes formation, their number remains half (N), that becomes 2N
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Confocal Microscopy
Confocal Microscopy Types Basic Concepts – Imaging Modes – Three-Color Imaging for Confocal Microscopy – True or False: Scanning electron
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