Alec Titan
Nucleic acids are naturally occurring chemical compounds that carry and encode genetic information in all living things. They are composed of nucleotides, which are the monomer components: a 5-carbon sugar, a phosphate group, and a nitrogenous base. The two main classes of nucleic acids are deoxyribonucleic acid (DNA) and ribonucleic acid (RNA). While DNA is the master blueprint for life, RNA plays a crucial role in various processes, including protein synthesis. The study of nucleic acids is a foundation for genome and forensic science, as well as biotechnology and pharmaceuticals. Research has been conducted to understand nucleic acid concentration and ribonuclease activity in muscles during their activity, indicating a relationship between nucleic acids and muscle function.
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What You'll Learn
Nucleic acids are large biomolecules
The two main classes of nucleic acids are deoxyribonucleic acid (DNA) and ribonucleic acid (RNA). The basic component of biological nucleic acids is the nucleotide, each of which contains a pentose sugar (ribose or deoxyribose, a variant of ribose), a phosphate group, and a nucleobase. The nucleobase can be either a purine or pyrimidine base. The sugars and phosphates in nucleic acids are connected to each other in an alternating chain (sugar-phosphate backbone) through phosphodiester linkages. This gives nucleic acids directionality, and the ends of nucleic acid molecules are referred to as 5'-end and 3'-end.
Nucleic acids are chemical compounds that are found in nature and are very common in all living things. They carry, create, encode, and store information in every living cell of every life form on Earth. They send and express that information inside and outside the cell nucleus. They are essential for the continuity of life, carrying the genetic blueprint of a cell and providing instructions for the functioning of the cell.
Nucleic acids were named for their initial discovery within the nucleus of eukaryotic cells and for the presence of phosphate groups (related to phosphoric acid). They are now known to be found in all life forms, including within bacteria, archaea, mitochondria, chloroplasts, and viruses. All living cells contain both DNA and RNA (except some cells such as mature red blood cells), while viruses contain either DNA or RNA, but usually not both.
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They carry genetic information
Nucleic acids are large biomolecules that are crucial in all cells and viruses. They are composed of nucleotides, which are the monomer components: a 5-carbon sugar, a phosphate group, and a nitrogenous base. The two main classes of nucleic acids are deoxyribonucleic acid (DNA) and ribonucleic acid (RNA). If the sugar is ribose, the polymer is RNA; if the sugar is deoxyribose, a variant of ribose, the polymer is DNA.
Nucleic acids carry genetic information in cells and make up genetic material. They create, encode, and store information in every living cell of every life form on Earth. They send and express that information inside and outside the cell nucleus. From the inner workings of the cell to the young of a living thing, they contain and provide information via the nucleic acid sequence. DNA is the master blueprint for life and constitutes the genetic material in all free-living organisms and most viruses. RNA is the genetic material of certain viruses, but it is also found in all living cells, where it plays an important role in certain processes, such as the making of proteins.
The well-known structure of the DNA double helix allows this information to be copied and passed on to the next generation. The genome is the complete set of DNA molecules within an organism. In humans, this is the DNA present in the 23 pairs of chromosomes in the nucleus, plus the relatively small mitochondrial genome. Humans have a diploid genome, inheriting one set of chromosomes from each parent. A complete and functioning diploid genome is required for normal development and to maintain life.
The nucleic acid concentration and ribonuclease activity in muscles during their activity have been studied. The RNA level is shown to increase in the muscles of trained and untrained animals. The load causes quantitative changes in the amino acidic composition of the muscles; the content of cystine, cysteine, asparaginic acid, lysin, and leucine decreases.
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They are made up of nucleotides
Nucleic acids are large biomolecules that are crucial in all cells and viruses. They are composed of nucleotides, which are the monomer components. The two main classes of nucleic acids are deoxyribonucleic acid (DNA) and ribonucleic acid (RNA). All living cells contain both DNA and RNA, while viruses contain either DNA or RNA, but usually not both.
Nucleotides are the basic building blocks of nucleic acids. They are organic molecules composed of a nitrogenous base, a pentose sugar, and a phosphate. The nitrogenous base is also known as a nucleobase or simply a base. The pentose sugar is a five-carbon sugar molecule, which can be either ribose (in RNA) or deoxyribose (in DNA). The phosphate group is acidic, giving nucleic acids their name. These three components of a nucleotide are joined to form a nucleoside monophosphate, nucleoside diphosphate, or nucleoside triphosphate, depending on the number of phosphates.
In nucleic acids, nucleotides contain either a purine or a pyrimidine base. Adenine and guanine are the purine bases, while cytosine and thymine are the pyrimidine bases. In RNA, the base uracil is used instead of thymine. The sugars and phosphates in nucleic acids are connected to each other in an alternating chain (sugar-phosphate backbone) through phosphodiester linkages. This creates a 'backbone' strand for a single- or double helix.
Nucleotides play a central role in metabolism at a fundamental, cellular level. They provide chemical energy in the form of nucleoside triphosphates such as adenosine triphosphate (ATP) and guanosine triphosphate (GTP). They also play a role in cellular signaling, enzymatic cofactors, and redox reactions.
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They are found in all life forms
Nucleic acids are naturally occurring chemical compounds that are found in all life forms. They are large biomolecules that are crucial in all cells and viruses. They carry information in cells and make up genetic material. These acids are very common in all living things, where they create, encode, and store information in every living cell of every life form on Earth.
The two main classes of nucleic acids are deoxyribonucleic acid (DNA) and ribonucleic acid (RNA). They are composed of nucleotides, which are the monomer components: a 5-carbon sugar (also called pentose sugar), a phosphate group, and a nitrogenous base. The phosphate group makes the molecule acidic, hence the name nucleic acid. The substructure consisting of a nucleobase plus sugar is termed a nucleoside.
DNA and RNA differ in the structure of the sugar in their nucleotides. DNA contains 2'-deoxyribose, while RNA contains ribose. The only difference is the presence of a hydroxyl group. The nucleobases found in the two nucleic acid types are also different. Adenine, cytosine, and guanine are found in both RNA and DNA, while thymine occurs in DNA and uracil occurs in RNA. The sugars and phosphates in nucleic acids are connected to each other in an alternating chain (sugar-phosphate backbone) through phosphodiester linkages.
Nucleic acids were first discovered by Swiss biochemist Friedrich Miescher in 1869 at the University of Tübingen, Germany. He discovered a new substance, which he called nuclein.
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They are essential for protein synthesis
Nucleic acids are large biomolecules that play an essential role in all cells and viruses. They are composed of nucleotides, which are the monomer components: a 5-carbon sugar, a phosphate group, and a nitrogenous base. The two main classes of nucleic acids are deoxyribonucleic acid (DNA) and ribonucleic acid (RNA).
DNA is the nucleic acid that stores genetic information. It encodes the information cells need to make proteins. Each chromosome is composed of proteins and DNA. The chromosomes contain smaller hereditary units called genes, which are relatively short segments of DNA. The hereditary information is expressed or used through the synthesis of RNA.
RNA is the nucleic acid responsible for using the genetic information in DNA to produce proteins. It comes in different molecular forms that play multiple cellular roles, including protein synthesis. Messenger RNA (mRNA) molecules carry the coding sequences for protein synthesis and are called transcripts. During translation, mRNA molecules are read to make proteins. Each mRNA dictates the order in which amino acids should be added to a synthesised protein.
Ribosomal RNA (rRNA) molecules form the core of a cell's ribosomes, which are the structures in which protein synthesis takes place. Within the ribosome, the rRNA molecules direct the catalytic steps of protein synthesis—the stitching together of amino acids to make a protein molecule. Transfer RNA (tRNA) molecules carry amino acids to the ribosomes during protein synthesis.
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Frequently asked questions
Nucleic acids are large biomolecules composed of nucleotides, which are the monomer components: a 5-carbon sugar, a phosphate group, and a nitrogenous base. The two main classes of nucleic acids are deoxyribonucleic acid (DNA) and ribonucleic acid (RNA).
If the sugar is ribose, the polymer is RNA; if the sugar is deoxyribose, a variant of ribose, the polymer is DNA. All living cells contain both DNA and RNA (except some cells such as mature red blood cells), while viruses contain either DNA or RNA, but usually not both.
Nucleic acids carry the genetic information which is read in cells to make the RNA and proteins by which living things function. They create, encode, and store information in every living cell of every life form on Earth.
Nucleic acids are linear polymers (chains) of nucleotides. Each nucleotide consists of three components: a purine or pyrimidine nucleobase (or nitrogenous base), a pentose sugar, and a phosphate group.
No, muscle is not a nucleic acid. However, nucleic acid concentration and ribonuclease activity in muscles have been studied during their activity.
