How DNA Controls the Biochemical Processes of a Cell
DNA exerts a potent influence over the biochemical processes which take place in cells. Much of the evidence for this has come from the study…
Biology
The Importance and Role of the Nucleus in Cell Division
If a fertilized egg is deprived of its nucleus it fails to develop properly; in fact the enucleated egg usually dies unless the nucleus is…
The Role of the Cytoplasm in Genetics and DNA Manipulation
For a better understanding of DNA manipulation, Acetabularia provides us with a pleasingly simple case of development: a single cell, one nucleus and a comparatively…
How to Engineer Tissue Culture and Grafting for New Embryo Development
The answer to these questions has come from two different types of experiment — Tissue Culture and Grafting. Before we delve into the subject above, we must…
The Chemical Nature of Organizers as Explained by Spemann and Mangold
The chemical nature of Organizers can only be well explained after we have examined the powerful influence exerted by chorda and mesoderm on neighboring tissues…
The Role of the Genetic Code in Cell Development
What role does the genetic code play during development? Briefly the problem is this. The cells of an adult animal, even an embryo, are highly…
The Role of Chromosome Puffs and Gene Switching On Protein Synthesis
There are evidences in support of the idea of the role of chromosomes in protein synthesis. These evidences come from observations on the giant chromosomes…
Environmental Effects on the Genetics of the Himalayan Rabbit
Experimental investigations on genetics have proven that the environment can influence development by affecting the genetic activities or gene action. Environment in that context means…
The Evidence of Cytoplasmic Control of Gene Translation
The Jacob-Monod hypothesis proposes that gene control occurs at the level of transcription in the nucleus, i.e. unwanted parts of the DNA are prevented from…
Jacob-Monod Hypothesis and the Genetics of Enzyme Synthesis in E.coli
During the late 1950s François Jacob and Jacques Monod of the Pasteur institute in Paris carried out a series of brilliant researches on the genetic…