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Sex determination

How sex determination varies from species to species? “A biological process by which the sex of an individual is decided under the influence of genetic or environmental factor”. Sex determination is a complex biological process in nature. Different species have a different type of sex determination mechanism. Male produces male gametes and female produces female

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Story of Chromosome

History Chromosomes were first observed by Wilhelm Hofmeister, in 1848. Later on in the year, 1883 Wilhem roux speculated chromosomes as a carrier of genetic information. Structure How DNA is arranged on the chromosome is a complex process. Let’s start with the DNA itself. DNA is a double-stranded molecule and helical in shape. Imagine a

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Story of Gene

History The story of genetics begins when Friedrich miescher isolated the substance from the cell and termed it as “nuclein” in 1869. He believed that the nuclei is an organelle which is responsible for the inheritance of characteristics. Later on his student, Richard Altmann named it “nucleic acid”. The term gene is coined by wilhem johannsen

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