Majority of the flowering plants are monoecious with male and female reproductive parts are borne on the same flowers or different flowers of same plant. Only about 6% of Angiosperms are dioecious (male and female flowers on separate plants). The studies of sex determination mechanisms in plants were done only […]
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Genic Balance Theory of Sex Determination in Drosophila melanogaster
What is sex determination? Living organisms, with a very few exceptions, are differentiated into male and female individuals based on their morphological, physiological and behavioral characteristics. Even though the mechanism greatly varies, the sexes of the individuals are genetically determined. The biological system that determines the development of sexual characteristics […]
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CSIR JRF NET Exam June 2016 Notification
Applications are invited from eligible candidates for the CSIR JRF NET Examination, June 2016. CSIR will hold the Joint CSIR-UGC Test Tentatively on Sunday 19th June, 2016 for determining the eligibility of the Indian National candidates for the award of Junior Research Fellowships (JRF) NET and for determining eligibility for […]
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Hardy Weinberg Equilibrium: Population and Evolutionary Genetics
What is population? An ecosystem consists of many species. Species is a group of living organism comprising of similar individuals capable of exchanging genes through interbreeding. The individuals of a same species of a particular region are called population. Population definition: “A group of individuals of a particular species occupying […]
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Difference Between Gram Positive and Gram Negative Bacteria
Gram Positive vs Gram Negative Bacteria What is Grams staining? Christian Gram, a Danish Physician in 1884 developed a staining technique to distinguish two types of bacteria. The two categories of bacteria based on gram staining are Gram positive bacteria and Gram negative bacteria. Bacteria are first stained with crystal […]
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