Dna and proteins essay

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Dna and proteins essay

It acts like a recipe holding the instructions telling our bodies how to develop and function. What does DNA stand for? DNA is short for deoxyribonucleic acid. What is DNA made of? DNA is a long thin molecule made up of something called nucleotides. There are four different types of nucleotides: They are usually represented by their first letter: A- adenine C - cytosine G - guanine Holding the nucleotides together is a backbone made of phosphate and deoxyribose.

The nucleotides are sometimes referred to as "bases". Each cell does a different job to help our body to function. There are blood cells, bone cells, and cells that make our muscles. How do cells know what to do?

Dna and proteins essay

Cells get their instructions on what do to from DNA. DNA acts sort of like a computer program. The cell is the computer or the hardware and the DNA is the program or code.

As the cell "reads" the instructions on the DNA the different letters represent instructions. Every three letters makes up a word called a codon.

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A string of codons may look like this: This allows for billions and billions of different combinations. Genes Within each string of DNA are sets of instructions called genes. A gene tells a cell how to make a specific protein. Proteins are used by the cell to perform certain functions, to grow, and to survive.

This shape is called a double helix.Protein synthesis is the synthesis of polypeptide chains which then produce the specific proteins based on the genetic code in DNA.

It occurs in two stages, transcription and translation. Transciption occurs in . View Essay - DNA from BIOLOGY Biology 1 at Florida Virtual High School. Assignment: DNA Replication Translation is the process in which ribosomes synthesize proteins using the mRNA.

A protein machine inside the nucleus pries apart the weak bonds that hold the two strands of DNA together. RNA building blocks swarm in and form a conga line complementary to the DNA.

This RNA.

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dna, rna and protein synthesis, genetic engineering #20 By using the techniques of genetic engineering, scientists are able to modify genetic material so that a particular gene of interest from one cell can be incorporated into a different cell. The table below presents an abbreviated geologic time scale, with times and events germane to this essay.

Please refer to a complete geologic time scale when this one seems inadequate. RNA converts the genetic information contained within DNA to a format used to build proteins, and then moves it to ribosomal protein factories. Structure DNA consists of two strands, arranged in .

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