Proteins are the main structural and functional components of cells.
Each group of three bases in mRNA constitutes a codon, and each codon specifies a particular amino acid. The mRNA sequence is thus used as a template to assemble in order the chain of amino acids that form a protein.
The sequence of a protein is determined by the DNA of the gene that encodes the protein change in the gene's DNA sequence may lead to a change in the amino acid sequence of the protein. The sequence of amino acids of a protein determines protein shape, since the chemical properties of each amino acid are forces that give rise to intermolecular interactions to begin to create secondary structures, such as α-helices and β-strands.
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Sperm is created in the testicles
In framing farmers use pesticides kill crop pests. But pesticides can have unexpected and unwanted effects on other organisms too. These chemicals harm other species living around the farm. Besides, farmers often use chemical fertilizers to increase the crop productivity but excess use of fertilizers can cause water pollution. Polluted water can kill fish and other aquatic organisms. In this way farming affects biodiversity.
