Essay about DNA: The Basis for Sustaining Life

There are no two individuals that are completely alike, people vary by hair color, height, skin tone, gender and other endless possibilities. The reason for these variations can be traced back to our genetic make-up. A person as 23 pairs of chromosomes and each of these chromosomes carry one molecule of DNA. DNA itself is made up of adenine, thymine, guanine, and cytosine, then, these chemical compounds wrap around each other to form a double helix. These chromosomes contain around 20,500 genes and even with such a large number our variations are caused by less than 1% of our genes according to the Human Genomes Project in 2003. These variations also come from genotypes and phenotypes. A genotype is the complete set of genes that make a person’s hereditary, whereas, a phenotype are psychological, behavioral, and psychological features that result from the interaction between genes and the environment.

Throughout the early 19th and 20th century, many scientists have studied deoxyribonucleic acids in order to attain higher understanding over the matter. Johann G. Mendel had figured out and understood the laws of heredity. Friedrich Miescher discovered DNA

Deoxyribonucleic acid, DNA for short, is a substance in all living organism that duplicates itself. It is the carrier of all genetic information, such as eye color, hair color, height, etc. DNA is found in all living things including both eukaryotic and prokaryotic organisms. DNA is tightly packaged in the chromosomes to start DNA replication. During this process, DNA unwinds so that it can be duplicated. DNA can be extracted from strawberries which can also explain how DNA can be used for medicinal purposes as well as explaining how DNA extraction originated.

Deoxyribonucleic acid, or DNA as it is most commonly known, is a strand of molecules found within the cell nucleus of all living things. It is called a “genetic fingerprint” because each is different to the other and everyone, apart from identical twins, have

Although DNA molecules seem minuscule, if all the DNA in a human body was unwound and placed from end to end, it would cover about 10 billion miles. That's approximately the same distance as traveling from the Earth to Pluto and back. (Helmenstine, 2017). “If a person typed 60 words per minute, eight hours a day, it would take approximately 50 years for them to type the human genome” (Kawasaki, 2010). Scientist have calculated that DNA has a 521-year half-life, which

Each human being has something called DNA. DNA is described as genetics and an extremely long macromolecule that is the main component of chromosomes and is the material that transfers genetic characteristics in all life forms. DNA constructs of two nucleotide strands coiled around each other in a ladder like arrangement with the sidepieces composed of alternating phosphate and deoxyribose units and the rungs composed of the purine and pyrimidine bases adenine, guanine, cytosine, and thymine. Each chromosome consist of one continuous thread-like molecule of DNA coiled tightly around proteins and contains a portion of the 6,400,000,000 basepairs that make up your DNA.

Each cell contains the genetic coding that makes organisms function. A collection of similar functioning cells form tissues. Groups of tissues form organs, organs make systems and all of this together is the human body. Cells store DNA, which are the blueprints of the body. Humans have 46 chromosomes that come from parents; they create the genetic coding

wonder what exactly is DNA? DNA is a term used for deoxyribonucleic acid and it

Physical development of the human begins at conception when the egg is fertilized by the sperm. Once the ovum is fertilized, the process of mitosis begins, allowing the cells to split and form the human being. Through this process, each parent contributes 23 chromosomes, which are present in every cell of our bodies, and are made up of DNA and genes (Broderick & Blewitt, 2015). The genes that we inherit from our parents determine our physical features, such as hair and eye color, and height. Furthermore, the combination of various genes within the body at the time of conception may result in the individual carrying unexpected traits and illnesses (Broderick & Blewitt, 2015).

genetic information. The information is stored as a code made up of four chemical bases:

DNA creates human beings. When we are created in the womb, we are just two strands of our parents DNA mixing together. DNA encodes the genetic information that is necessary for the growth, development, and reproduction of an organism.

Before researchers were able to find a way to make this possible, they first had to understand more about genetics. Genetics explains the process of parents passing down genes to their children, these genes are things like hair colour, eye colour and genetic disorders. Every human has 23 pairs of chromosomes, 43 individual, and within them is where the genes are carried, each chromosome holds about 20,000 genes.

A single message, which we call DNA, has been passed down from the very first microscopic organism all the way to us today. It travels in a continuous thread that flows through all living things, and is the secret of all life. This message within all of us is made up of four nitrogen bases, Guanine (G), Thymine (T), Cytosine (C), and Adenine (A), which are connected in a double helix, which looks like a twisted ladder. These bases come in pairs, as G connects with C, and A with T, and the order of these base pairs is what creates the variance we see in every organism today. There are approximately 3 billion base pairs in the human genome, but only about 30,000 are actually our genes. However, one wrong letter out of 3 billion can cause extreme various in humans

DNA is an abbreviation of Deoxyribonucleic Acid- a compound carries the genetic coding information for active growth and development of organisms. DNA is a macromolecule made up of genetic material of the cell and includes genetic information for the production of proteins necessary for the body as well as to determine the nature of a person. Similarly, DNA consists of small nucleotide sequences, repetitive, is known for their great diversity in the community. Some repetitive sequences known as STRs (Short Tandem (nucleotides) Repeat) can be used for determining the identity of people through their genetic profile.

Deoxyribonucleic (DNA) is the molecule that hold the genetic information of living things. In our body every cell contains about 2 meters of DNA. DNA is copied every time a cell divides. Deoxyribonucleic (DNA) is made up of two polynucleotide strands. Polynucleotide strands twist around each other, forming a shape that looks like a ladder called a double helix. The two polynucleotide strands run antiaparallel to each other with nitrogenous bases this means that the stands run in opposite directions, parallel to one another. The DNA molecule consists of two backbones chains of sugars and phosphate groups. The organic bases held together by hydrogen bonds. Although bases bonded together are termed paired