Essays On Dna

Practice Questions for FALL FINAL Biology KEY Note: These are a few sample questions that you can work through for more practice with genetics and experimental design. You should also review the evolution and experimental design quizzes and exams. These questions do NOT cover all of the material covered this semester. Completion of these questions […]

ABSTRACT The microevolution of Alu element TPA-25 was tested in the experiment through the examination, observation, and analysis of population alleles distribution under the Hardy-Weinberg Theory of Genetic Equilibrium. Alu elements affect the genome by causing insertion mutations, recombination between elements, gene conversion, and alterations in gene expression. In the lab PCR was used to […]

Abstract Plasmids serve as important tools in genetics and biotechnology labs, where they are commonly used make many copies of a particular gene. The aim of this experiment was to identify three mystery plasmids based upon their characteristics; such as size, antibiotic resistance, lacZ profile and conjugative properties. The results obtained showed that plasmid number2 […]

Question one: the human genome project. The human genome project is an international scientific research project to sequence and map all of the genes of human beings. completed over thirteen years by the U. S. department of energy and the national institutes of health, however many different countries such as Japan, the U. K. , […]

The development of theories surrounding evolution has been heavily influenced by social and political factors. During the time of Charles Darwin, Christianity was a dominant force and creationism was widely accepted as both a religious and scientific concept. Despite being aware of the impact his theory would make, Darwin withheld it for 25 years until […]

Cell type refers to the classification of cells based on their connective, epithelial, muscle, nervous, or other types. The function of a cell is determined by its cytoplasm where chemical reactions occur to maintain cellular activity. Within this category, there are various types of cells including blood cells, bone cells, heart cells, skin cells, and […]

In recent years science has been using recombinant DNA to genetically modify animals, plants and now technology has advanced to the point where there is constant speculation on manipulating human DNA. Recombinant DNA, or more commonly known as ‘genetic engineering’ involves “the combination of DNA from one organism with DNA from another organism”. There are […]

There is much controversy surrounding the topic of genetically modified foods, a subject that provokes an emotional debate as some of the ideas contradict many moral and religious beliefs. Many ‘disadvantages’ are merely the moral views of people, and have little or no scientific link, such as the belief of consuming a plant with a […]

Deoxyribonucleic acid or its commonly known name DNA – is a molecule that contains our genes. It forms part of a chromosome and is only found inside the nucleus of a cell. Our DNA consists of units called nucleotides. Each consists of a 5-carbon sugar, deoxiyribose, a phosphate group and a nitrogenous base – adenine […]

The development of recombinant DNA technology is, in biological terms a very recent discovery. It was founded in 1973 by Cohen and Boyer, the first two scientists to successfully transplant a section of DNA from one bacterium and insert it into another using restriction enzymes, creating the first transgenic organism1. As with every biological discovery […]

The learning process of constructing arguments is based on the following stages: hypothesis, prediction, experiment, analysis, and theory. An example of this is the study of DNA, where the question posed was how information is stored in it. Watson and Crick hypothesized that DNA could be helical in structure, which was confirmed through Rosalind Franklin’s […]

In the previous activity, you learned that DNA contains instructions for making proteins and the basics of protein synthesis. In this activity, you will use your knowledge of written text and translation to decode a secret message and explore the effects of different mutations on protein production. Specifically, you will focus on the genetic mutation […]

Over the past several years Genetics has become a leading link to understanding how our body works. By mapping out deoxyribonucleic acid, or DNA, scientists plan to find cures for various diseases, develop better, more efficient drugs, grow new organs, evaluate environment hazards, and eventually build a human being. Inside of every single cell in […]

The genome of an organism, which includes its DNA and genes responsible for producing proteins, determines various functions such as appearance, behavior, processing abilities, and immune response. The DNA is made up of four chemical bases (adenine, thymine, cytosine, and guanine) that repeat millions or billions of times within a genome. For example, the human […]

This report offers a comprehensive overview of the main theories on the aging process. As there is no universally accepted theory, these discussed theories serve as potential explanations for aging, with each hypothesis holding approximately equal likelihood. The focus of the explored theories ranges from DNA mutations and replication at the molecular level to wear […]

Science is a creature that continues to evolve at a much higher rate than the beings that gave it birth. The transformation time from tree-shrew, to ape, to human far exceeds the time from an analytical engine, to a calculator, to a computer. However, science, in the past, has always remained distant. It has allowed […]

There are many differences in the composition and storage of genetic material in prokaryotes and eukaryotes. Chromosomes in prokaryotes consist of a single nucleic acid molecule which can be either DNA or RNA. There is comparatively little genetic material for example E. coli genome is 1200 micrometres while a single human chromosome is between 12000 […]

Arabidopsis thaliana is found in the mustard family and is a weed used as a model organism to aid in research. Over the years, research has taken off due to this and other model organisms for many reasons. A short generation time is ideal so that experiments can be conducted in a timely manner. Arabidopsis […]

Most people have heard of DNA. If not on the current, popular television shows like CSI, then most likely on the plethora of shows that display crime cases that are real. Nowadays, DNA analysis is considered the paramount method in determining biological relationship as well as a key component in solving crimes. Because everyone’s DNA […]

Enzymes are protein, they are used to catalyse metabolisms in all organisms. They break down complex molecules and build up complex molecules from simple molecules, these two processes are catabolic reaction and anabolic reaction respectively. Enzymes are needed in these two processes to catalyse releasing and taking up ATP molecules. Different sequence of amino acid […]

The history of forensic science can date back as early as the 19th century if not earlier. Gregor Mendal who is known as the father of genetics, proved that characteristics are passed from one generation to the next. He did a study over 8 years growing sea plants and he noticed there were characteristics passed […]

Disclaimer: This booklet has been created by the Centre for Environment Education (CEE) specifically for participants of the national consultations. It does not represent the views of the Ministry of Environment and Forests, Government of India or the Centre for Environment Education. Introduction Bt Brinjal is a genetically modified form of brinjal that involves inserting […]