Histones are thought to be displaced as RNA polymerase is transcribing a gene. What would the potentially harmful consequences if histone were not put back onto a gene after RNA polymerase has passed?
Gene Interactions
When the expression of a single trait is influenced by two or more different non-allelic genes, it is termed as genetic interaction. According to Mendel's law of inheritance, each gene functions in its own way and does not depend on the function of another gene, i.e., a single gene controls each of seven characteristics considered, but the complex contribution of many different genes determine many traits of an organism.
Gene Expression
Gene expression is a process by which the instructions present in deoxyribonucleic acid (DNA) are converted into useful molecules such as proteins, and functional messenger ribonucleic (mRNA) molecules in the case of non-protein-coding genes.
DNA is the nucleic acids present in the organisms. DNA is the deoxy ribose nucleic acid in which ribose sugar molecules with nucleic acid bases. DNA is transcribed into messenger RNA and this m RNA undergoes translation into proteins.
So there are two type of chromatin in the chromosome one is euchromatin and the other is the heterochromatin.
Euchromatin is the less compactly condensed area of the chromosome , which contains the mostly transcribed genes because it is less condensed polymerase enzyme can bind it and can start the replication process.
Heterochromatin is the most tightly condensed area of the chromosome. Which do not contain the transcribed genes, the genes present in this region are not transcribed because it is so much tightly condensed that it the polymerase enzyme is not able to bind it to start the replication process.
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