Calcium ions are involved in many mechnisms: for example, stabilization of cell wall structures, acidic growth, ion exchange properties, control of the activities of wall enzymes. All these properties originate from the tight binding of calcium ions to the pectins present in the cell walls.
Well quiet naturally both animal and human testing are both very controversial and involve great deal of ethics.
1) When chromatin condenses, it can be seen that eukaryotic DNA is not only a long chain, but is also divided into linear pieces called chromosomes.
2) Genes are segments of deoxyribonucleic acid (DNA) that contain the code for a specific protein whose function is performed in one or more types of body cells. Chromosomes are structures that are found within cells and that contain the genes of a person.
3)Gene expression is the process that allows proteins to be obtained from genes. The code defines the relationship between each sequence of three nucleotides, called codon, and each amino acid.
The theory of evolution is supported by molecular biology because the linear order of nucleotides and sequence homo-logy may be useful to show a common origin.
<h3>What is sequence homo-logy?</h3>
The expression sequence homo-logy makes reference to the similarity level between two or more sequences (e.g., DNA sequences) in organisms.
The sequence homo-logy can be very useful to show a common evolutionary origin in a group of organisms.
The sequence homo-logy refers to the linear sequence of nucleotide bases in the DNA molecule.
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