In this section you’ll find free example science essays to inspire your own work. One of our biggest essay categories, our science section includes essays on physics, chemistry, botany, biology, palaeontology, genetics, geology and more. Find more science essays here. We also have a separate section for zoology essays.
Life as we know it, is specified by the genomes (the entire genetic component of the living organism) of the large variety of organisms with which we share the planet. Every organism possesses a genome that contains biological information needed to construct and maintain a living for that specific organism. The human DNA consists of … Read more
Most genome-editing methods rely on delivery of exogenous plasmid or viral DNA into cells to express the necessary editing tools intracellularly. However, since the expression is uncontrollable once the plasmid is expressed, sometimes the produced nucleases like Cas9 and sgRNA will lead to the excessive off-target editing after the on-target editing. To solve this problem, … Read more
Genetic engineering has become readily approachable since the development of the latest gene editing tool CRISPR/Cas9 in 2012. This pioneering technology holds the promise of modifying genomes of any organism in the world, curing genetic diseases and reshaping the biosphere to benefit the environment (Baltimore et al, 2015). However, there are number of ethical and … Read more
CRISPR gene editing of ADE2 gene produces clearly identifiable phenotypes & allows producing mutations & recovery of that mutants to wild type.
Introduction The following biological report discusses the human manipulation techniques relating to transgenesis and selective breeding of cows. Transgenesis refers to the removal of beta-lactoglobulin protein from milk produced by cows to reduce immune reactions due to allergies to the protein. This is done through multiple techniques; this report refers to CRISPR-Cas9 (Clustered Regularly Interspaced … Read more
Introduction In 1987, scientists came across the concept of CRISPR when they noticed an unexpected chain of DNA sequences that were altered and modified, which was then recognised as a CRISPR in Escherichia coli in the course of gene analysis. Once CRISPR was discovered all bacterial species were distinguished by short sequences similar to other … Read more
Predator Free 2050 (PF2050) is a New Zealand Government enforced plan with the goal to eradicating New Zealand’s introduced pests by 2050. The newest proposal is genetic engineering and modification of Possum’s DNA, through a process of CRISPR/Cas9-gene-drives to slowly eliminate those which harm NZ’s endemic species. CRISPR stands for Clustered Regularly Interspaced Short Palindromic … Read more
What is biotechnology and what are some of the ethical issues that arise from the biotechnological techniques? Biotechnology – The implementation of technology to maximise the use of biological organisms for human use. Benefits of Biotechnology: Medical Biotechnology: – Pharmaceuticals: Vaccines: Understanding and being able to strengthen the humans immune system Antibiotics: Synthetically designed drugs … Read more
Scientific Literature Essay The purpose of this essay is to analyse the contents of a secondary (‘The Role of Gene Editing in Neurodegenerative Diseases’) and primary article (‘Modeling familial Alzheimer’s disease with induced pluripotent stem cells’) and then compare the two. The journal the review article is associated to must also be examined for a … Read more
Genetic manipulation, is a direct process that is done by manipulating or changing the genome of an organism in order for a desired trait to be produced. For this process to occur, a scientist must be able to manipulate DNA so that changes can be induced into the gene expression of the organism. Humans have … Read more
Genome editing is a kind of genetic engineering in which scientists are able to change an organism’s DNA. This technology allows specific genes to be inserted, replaced, modified, and deleted. One type of gene editing is known as the CRISPR-Cas9 system (or clustered regularly interspaced short palindromic repeats and CRISPR-associated protein 9). The CRISPR-Cas9 system … Read more
Designer bags, designer belts, designer shoes, designer clothing. But, what about designer babies? Imagine if you already knew your unborn child would have Beyoncé’s voice, Usain bolt’s speed, the intelligence of Albert Einstein, Angelina Jolie’s cheekbones and Channing Tatum’s abs? Seems pretty farfetched but is it really? A designer baby is a human embryo that … Read more
The human race is approaching a new frontier in medical science: Genetic engineering. With the new CRISPR technology we have, we are able to edit genes much more precisely than we used to be, and we will be able to alter the human genome. Essentially, Gene editing is changing the body’s genes by altering or removing … Read more
One of the most significant recent scientific discoveries was that of CRISPR, a bacterial immune system mechanism. CRISPR stands for “clustered regularly interspaced short palindromic repeats.” It may have a complex name, but the mechanism itself only involves 2 components: an enzyme that cuts DNA and a “guide” RNA strand. The CRISPR sequences themselves are … Read more
Abstract Bacteria and bacteriophages have been involved in an evolutionary arms race for billions of years. The basis of the arms race results from bacteria evolving defense mechanisms to protect and prevent themselves from phage infection, while phages coevolve to evade these defense mechanisms. One of the mechanisms of defense bacteria use is the CRISPR-Cas … Read more
