In this article we will discuss about the genomes in chloroplast DNA and mitochondria DNA. The phenomenon of extra-nuclear inheritance based on transmission of visible phenotypes through mitochondria and chloroplasts. Studies in the 70s revealed presence of DNA in these organelles. Both mitochondria and chloroplasts are present only in cells of lower and higher eukaryotic organisms. Detailed studies established that [...]
The following points highlight the eleven main classes of algae. The classes are: 1. Chlorophyceae 2. Xanthophyceae 3. Chrysophyceae 4. Bacillariophyceae 5. Cryptophyceae 6. Dinophyceae 7. Chloromonadineae 8. Euglenineae 9. Phaeophyceae 10. Rhodophyceae 11. Cyanophyceae or Myxophyceae. Class # 1. Chlorophyceae (Green Algae): Unicellular, colonial or multicellular green plants, generally with simple structure, principal pigments are chlorophyll a and b, [...]
In this article we will discuss about the economic importance of algae. Algae like other plants are intimately connected to human beings from times immemorial. Algae can be both beneficial and harmful to mankind. Algae are primarily producers of food in a very large ways and are used as food, fodder and manures. Many industrial products e.g., agar-agar carrageenin, iodine [...]