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The polymerase chain reaction (PCR) is used in a technique used in the laboratory to amplify a specific type of DNA sequence. This method is extremely efficient because it has the ability to make millions and billions of copies of specific sequences of DNA. DNA is essential for life is what contains our entire information.
Published by Renato Bravo 69 months ago in Genetics & DNA | +0 votes | 0 comments
Within genetics, it is required to know how to crack the genetic code, or in other words, determining the amino acid sequence by going through the steps of DNA to mRNA [transcription] and then tRNA to proteins [translation]. Here is an easy step by step process of learning how to fill in the table to determine the sequences, allowing for the determination of the amino acids in the proteins.
Published by Kristen Hall 69 months ago in Genetics & DNA | +0 votes | 0 comments
The discovery that DNA was the genetic material that contained the hereditary elements known as genes occurred in the early twentieth century. By the 1920Â’s it was known that the genetic material was present on chromosomes, but the chromosomes contained both DNA and proteins. This led to a debate over whether DNA or proteins were the principle genetic material. Several important historical experiments were able to definitively show that DNA was indeed the genetic material.
Published by whitney thorpe 69 months ago in Genetics & DNA | +1 votes | 1 comments
The articles explains the major differences between eukaryotes and prokaryotes. The article explains the enzymes and the amino acids that is used in prokaryotes and eukaryotes. The article will explain trancription in eukaryotes and prokaryotes and how they differ. This article also talks about the different trancriptional factors.
Published by C Williams 69 months ago in Genetics & DNA | +0 votes | 0 comments
In this article, I discuss the advantageous techniques of polymerase chain reaction and its contribution to science. This technique is used for a variety of reasons ranging from paternity tests to predisposition of diseases. The future of biology and genetics will be highly dependent on this technique. With this article I will briefly discuss how PCR works and the importance of it.
Published by Joshua Kan 69 months ago in Genetics & DNA | +0 votes | 0 comments
The article presents an overview of both the Tryptophan operon and the Lac operon and how they regulate gene expression in prokaryotic cells. In addition, the process of how both operons work including their components, such as the repressor and activator, is explained to help readers understand their role in gene expression regulation.
Published by Linh Doan 69 months ago in Genetics & DNA | +0 votes | 0 comments
The topic of this paper is the process of determining the correct model of DNA replication. The different experiments that were conducted are explained in detail such as how scientists used Nitrogen isotopes to label heavy and light DNA. It also talks about the different models that were suggested for DNA replication and how each was ruled out as the experiment proceeded.
Published by Herlinda Jimenez 69 months ago in Genetics & DNA | +0 votes | 0 comments
This is a very general overview of basics in the genetics that are involved development of the D. Melanogaster. The main two mechanisms discussed in this article are concentration gradients and morphogens and what genes are used in the development of the anterior posterior axis. The main purpose of this is to give a very basic and quick run through on the matter of genetics in development.
Published by Morrell Chhay 69 months ago in Genetics & DNA | +0 votes | 0 comments
This article discusses how DNA was experimentally determined to be the genetic material container. I discuss the ideas behind viruses and their infection of bacteria as well as my main focus on the experiment performed by Alfred Hershey and Martha Chase. In order to create a better context for the experiment, I briefly talk about two famous experiments that were performed previous to this one, namely Griffith experiment and Avery-McCarty experiment.
Published by Travis Micarelli 69 months ago in Genetics & DNA | +0 votes | 0 comments
This article is an overview of the genetic factor which causes alopecia (more commonly known as hair loss in both men and women). The genetic form of this condition is called androgenetic alopecia, in which a high level of the hormone androgen will cause the hair follicles to shed off of a man's head.
Published by Zuneda Khan 69 months ago in Genetics & DNA | +0 votes | 0 comments
DNA is the mode of heredity in all life forms that passes genetic information from the parents to the progeny. These inherited genes can create viable living offspring, or in some rare cases cause mutations that impair the progeny. This article will go over a general overview of how DNA is used and its purpose in Eukaryotic organism's relating to transcription and translation.
Published by Max Thorwald 69 months ago in Genetics & DNA | +0 votes | 0 comments
In this article there is overview of how gene expression is important in the Drosophila embryo, as well as how different mutations in maternal genes would affect the developing embryo. The expression of maternal genes is the first step in turning on different genes which will eventually give the Drosophila its phenotypic characteristics.
Published by Herlinda Jimenez 69 months ago in Genetics & DNA | +0 votes | 0 comments
DNA, also known as, Deoxyribonucleic acid, is a distinct type of nucleic acid that contains genetic information, which is used to form the development and activity of all organisms that are living. Many of these living organisms have some of this genetic material, DNA, that is in their cells. DNA is composed of two strands that are wrapped around each other in the form of a helical structure.
Published by Renato Bravo 69 months ago in Genetics & DNA | +0 votes | 0 comments
Pedigree is a diagram that demonstrates the genetic characteristics within a family. The genetic traits may be traced back along the generations. Interpreting the pedigree chart involves the understanding of certain symbols; which may have specific representations among the generations. The commonly used symbol of a circle and square represent the biological sex of an individual.
Published by Iqra Afzal 69 months ago in Genetics & DNA | +0 votes | 0 comments
As of today, we all know that DNA is the hereditary material in all living things. However, how did we come to such a conclusion? It was all thanks to the experiments led by Frederick Griffith and Oswald Avery. GriffithÂ’s experiment found what seems to be a transformation agent that gave life to dead cells. This transformation agent is later identified by AveryÂ’s experiment.
Published by Linh Doan 70 months ago in Genetics & DNA | +1 votes | 0 comments
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