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Articles by Anusha Karthik
Page 6 of 12
Advanced Backcross Quantitative Trait Locus (Ab-Qtl) Analysis
Introduction Agricultural research has come a long way over the years, with the advent of new technologies and methods. One such method is Advanced Backcross Quantitative Trait Locus (AB-QTL) analysis, which has revolutionized the field of plant breeding. AB-QTL analysis is a powerful tool used to identify the genetic basis of complex traits in plants. It involves crossing two different plant varieties, and then backcrossing the offspring with one of the parents repeatedly, in order to create a population with a high degree of genetic diversity. This population is then screened for quantitative trait loci (QTLs) that are associated ...
Read MoreWhat Is Difference Between Trp and Lac Operon
Introduction Genes are the building blocks of life, and they determine everything from the color of our eyes to our susceptibility to diseases. Two of the most well-known and widely studied gene systems are the Trp and Lac operons. These operons are involved in regulating the expression of genes in bacteria and play an essential role in the survival of these organisms. In this article, we will explore the differences between Trp and Lac operons, their significance, and how they function. What is Trp and Lac operon? Trp operon and Lac operon are two types of operons found ...
Read MoreWhat are the steps involved in RNA Processing?
Introduction As one of the central molecules of life, RNA plays a vital role in the transfer of genetic information from DNA to proteins. While DNA serves as a blueprint for building an organism, RNA acts as a messenger that carries the genetic information from the DNA to the ribosomes, where it is translated into proteins. RNA processing is an essential step in this process that involves several key stages, which we will explore in detail below. What is RNA? RNA stands for Ribonucleic Acid, a type of molecule that carries genetic information from DNA to proteins. Like DNA, ...
Read MoreTranslation Mechanism and Clinical Significance
Introduction The translation is a process by which the genetic information contained in the mRNA (messenger RNA) is decoded to produce a protein. The process of translation is a complex mechanism that occurs in every living cell and is essential for the proper functioning of the organism. It is a crucial step in the central dogma of molecular biology, which states that the information contained in DNA is transcribed into mRNA, and then translated into a protein. What is Translation Mechanism The translation mechanism is the process of decoding the mRNA sequence into a specific sequence of amino acids, ...
Read MoreTranslation and Post-Translational Modifications
Introduction Translation and post-translational modifications (PTMs) are two essential processes that play a critical role in the production and function of proteins in living cells. Translation is the process by which the genetic information encoded in the messenger RNA (mRNA) is converted into a functional protein. PTMs are covalent modifications that occur after translation and affect the structure, activity, localization, and stability of proteins. In this article, we will discuss translation and post-translational modifications in detail, including the steps involved, types of PTMs, and their applications. Translation Translation is a complex process that occurs in the cytoplasm of eukaryotic ...
Read MoreTranscription Factors: Definition, Effects, and types
Introduction Transcription factors are proteins that regulate gene expression by binding to specific sequences of DNA in a cell’s nucleus. They play an essential role in the process of transcription, which is the first step in the expression of genetic information. In this tutorial, we will explore the different types of transcription factors, their functions, and their clinical significance. What are Transcription Factors? Transcription factors are proteins that bind to specific DNA sequences in the promoter region of a gene and regulate the initiation of transcription. They can activate or repress gene expression and play a crucial role ...
Read MoreTermination Codon or Stop Codon
Introduction The genetic code is the set of rules that determine the correspondence between nucleotide triplets (codons) and the amino acids they specify. In the language of genetics, the Stop codon or termination codon is a nucleotide triplet in mRNA that signals the end of the protein-coding sequence. Stop codons are essential for the proper termination of protein synthesis and play a vital role in the regulation of gene expression. What is Stop Codon? Stop codon, also known as termination codon, is a set of three nucleotide sequences in the messenger RNA (mRNA) that signals the end of ...
Read MoreStructure and Composition of Bio-membranes of a cell
Introduction and History The membrane is an essential component of every living cell, which separates the cell from its external environment and provides a barrier to the free movement of molecules. The discovery of the cell membrane is attributed to the experiments of Robert Hooke and Anton van Leeuwenhoek in the seventeenth century, who first observed cells and bacteria under a microscope. In the nineteenth century, researchers discovered that cells were surrounded by a thin layer of material, which later became known as the cell membrane. The concept of the cell membrane’s structure and composition began to take shape ...
Read MoreStart Codon: Definition and Importance
Introduction Protein synthesis is a fundamental process that occurs in all living organisms. It involves the production of proteins from the genetic information encoded in DNA. The process of protein synthesis involves multiple steps, one of which is the initiation of translation. The initiation of translation is regulated by a start codon, also known as an AUG codon. Definition of Start Codon/AUG Codon The start codon, also known as the initiation codon or AUG codon, is a three-nucleotide sequence of mRNA that signals the ribosome to begin protein synthesis. It is always the first codon in an mRNA sequence ...
Read MoreStages of Transcription
Introduction Transcription is a process that takes place in all living organisms, where genetic information in the form of DNA is converted into a functional molecule of RNA. RNA is a polymer of nucleotides that plays a key role in the synthesis of proteins. Transcription is the first step in gene expression and is a complex process that involves a series of stages. In this tutorial, we will explore the different stages of transcription in detail. Initiation The initiation stage of transcription begins with the recognition of a specific region of DNA called the promoter by RNA polymerase, the ...
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