Embryological evidence
Comparative study of the embryos of different animals show a great deal of similarity.
Month: May 2022
Miller-Urey experiment
Miller-Urey experiment 1. In the 1950’s, biochemists Stanley Miller and Harold Urey, conducted an experiment.2. It demonstrated that several organic compounds could be formed spontaneously by simulating the conditions of Earth’s early atmosphere.3. It was a chemical experiment that simulated the conditions thought at the time to be present on the early Earth and tested the …
Semi-Conservative Replication of DNA
Semi-Conservative Replication of DNA – Meselson & Stahl’s Experiment Meselson and Stahl demonstrated that DNA replicated semi-conservatively, which means that each strand in a DNA molecule serves as a template for synthesis of a new, complementary strand. Watch this video THE MOST BEAUTIFUL EXPERIMENT IN BIOLOGY: Meselson & Stahl, The Semi-Conservative Replication of DNA – YouTube
Proof of DNA as the Genetic Material – Experiment of Avery, MacLeod, and McCarty
Proof of DNA as the Genetic Material – Experiment of Avery, MacLeod, and McCarty Oswald Avery, Colin MacLeod, and Maclyn McCarty showed that DNA (and not proteins) can transform the properties of cells, clarifying the chemical nature of genes. Avery, MacLeod and McCarty identified DNA as the ‘transforming material’ while studying Streptococcus pneumoniae with the help of Griffith’s …
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Discovery of DNA as the Genetic Material – Hershey-Chase Experiment
Discovery of DNA as the Genetic Material – Hershey-Chase Experiment In 1952, Alfred Hershey and Martha Chase made an effort to find the genetic material in organisms. Their experiments led to an unequivocal proof to DNA as the genetic material. Bacteriophages (viruses that affect bacteria) were the key elements for Hershey and Chase experiment. Watch this video …
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DNA replication-Process
DNA replication DNA replication is a process which occurs inside nucleus and requires various enzymes which help to manage this typical process. It is really difficult to learn the name, working order, and functions of these enzymes. But now you can remember them easily. HOW? Watch this GIF guys and you have the DNA replication enzymes and their …
Lac Operon
Lac Operon Watch this video Gene Regulation and the Order of the Operon – YouTube
Codon chart-How to read
Codon chart Watch this video How to Read a Codon Chart – YouTube
Process from DNA to Proteins – Central Dogma of molecular biology
Process from DNA to Proteins – Central Dogma of molecular biology Watch this video From DNA to protein – 3D – YouTube