Ribonucleic Acid (RNA) - National Human Genome Research …
网页2 天之前 · Definition. Ribonucleic acid (abbreviated RNA) is a nucleic acid present in all living cells that has structural similarities to DNA. Unlike DNA, however, RNA is most often single-stranded. An RNA molecule has a backbone made of alternating phosphate groups and the sugar ribose, rather than the deoxyribose found in DNA.
RNA - Wikipedia
网页Ribonucleic acid (RNA) is a polymeric molecule that is essential for most biological functions, either by performing the function itself (non-coding RNA) or by forming a template for the production of proteins (messenger RNA).
RNA | Definition, Structure, Types, & Functions | Britannica
网页2 天之前 · RNA, complex compound of high molecular weight that functions in cellular protein synthesis and replaces DNA (deoxyribonucleic acid) as a carrier of genetic codes in some viruses. RNA consists of ribose nucleotides (nitrogenous bases appended to a ribose sugar) attached by phosphodiester bonds, forming strands of varying lengths.
Ribonucleic Acid (RNA) Fact Sheet - National Human Genome …
网页2024年5月24日 · Ribonucleic acid (RNA) is an essential molecule that performs many roles in the cell, from carrying the instructions to make proteins to regulating genes. The Big Picture Ribonucleic acid, shortened to RNA, is one of the most versatile molecules of life.
ribonucleic acid / RNA | Learn Science at Scitable - Nature
网页Ribonucleic acid (RNA) is a linear molecule composed of four types of smaller molecules called ribonucleotide bases: adenine (A), cytosine (C), guanine (G), and uracil (U).
Biochemistry, RNA Structure - StatPearls - NCBI Bookshelf
网页2023年7月29日 · Ribonucleic acid (RNA) is a molecule that is present in the majority of living organisms and viruses. It is made up of nucleotides, which are ribose sugars attached to nitrogenous bases and phosphate groups. The nitrogenous bases include adenine, guanine, uracil, and cytosine.
RNA: What it is, what it does, and why it’s one of life’s most ...
网页RNA is a vital molecule for life, involved in gene expression, regulation, and evolution. Learn more about its roles and functions in this article.
What Is RNA? RNA Facts - Science Notes and Projects
网页2022年6月21日 · Ribonucleic acid or RNA is a nucleic acid found in all living cells. While RNA resembles DNA in many ways, it contains a different set of bases, usually is single-stranded instead of double-stranded, and transcribes DNA so a cell can make proteins.
What is RNA? - Live Science
网页2020年10月15日 · Together, RNA, short for ribonucleic acid, and DNA, short for deoxyribonucleic acid, make up the nucleic acids, one of the three or four classes of major "macromolecules" considered crucial for...
Messenger RNA (mRNA) | Description & Function | Britannica
网页5 天之前 · Messenger RNA, molecule in cells that carries codes from the DNA in the nucleus to the sites of protein synthesis in the cytoplasm (the ribosomes). Each mRNA molecule encodes information for one protein. In the cytoplasm, mRNA molecules are translated for protein synthesis by the rRNA of ribosomes.
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