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Gene mapping The diagrammatic representation of location and arrangement of genes and relative distance between  linked gene of a chromosome is called linkage map or genetic map. Unit of genetic map is Morgan or Centimorgan. History Test cross Gene map distance If the percentage of crossing over between two linked …

For any researcher, the first initiative to carry out and experiment is to select an appropriate experimental design.

Previously, basic principles and terminology of experiments have been discussed. There are several methods of experimental designs according to which the researchers follow and carry out statistical analysis. Among them, Completely randomized design (CRD), Randomised block design (RBD), and Latin square design is discussed here. Completely randomized design (CRD) In …

Probability means the possibility of a random phenomena.

“হাতিরঝিলে এক বেলা”   পলাশ Butea monosperma (L.)mak. শিমুল Bombax ceiba L. কাঠবাদাম Terminalia catappa L. হিজল Barringtonia acutangula (L.) Gaerth. রানীচূড়া Senna polyphylla (Jacq.) H.S.Irwin খেজুর Phoenix sylvestris Roxb. বাগানবিলাস Bougainvillea spectabilis Willd. শ্বেতশিমুল Ceiba pentandra (L.) Gaertn. কামিনী Murraya paniculata (L.) Jack শ্বেত রক্তকাঞ্চন bauhinia variegata var. candida দেবকাঞ্চন …

Algae is an extremely diverse group of organisms that make up the lower phylogenetic echelons of the plant kingdom. A precise definition of this group is elusive and they share many obvious characteristics with higher land plants, whereas their distinguishing features from other plant groups are varied and more subtle …

Metabolites are substances that help in metabolism. Some substances help in metabolism, but when they are produced in excess amounts, they remain outside the cell. Many algae produce extracellular metabolites such as lipids, glycolates, proteins, amino acids, vitamins, phenolic compounds, and organic acids.    

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ENDANGERED & THREATENED PLANTS OF BANGLADESH A plant which is found exclusively in a particular geographical region are known as endemic plant of that particular region. Endemic plants of Bangladesh To evaluate endemism within the political boundary of Bangladesh, one may need to have a clear idea on the geographical …