RNA - Wikipedia
Ribonucleic acid (RNA) is a polymeric molecule essential in various biological roles in coding, decoding, regulation and expression of genes.RNA and DNA are nucleic acids, and, along with lipids, proteins and carbohydrates, constitute the four major macromolecules essential for all known forms of life.Like DNA, RNA is assembled as a chain of nucleotides, but unlike DNA it is more often found ...
RNA - definition of RNA by The Free Dictionary
Short for ribonucleic acid. The nucleic acid that determines protein synthesis in all living cells and the genetic makeup of many viruses. RNA consists of a single strand of nucleotides in a variety of lengths and shapes and is mainly produced in the cell nucleus. ♦ Messenger RNA is RNA that carries genetic information from the cell nucleus to the structures in the cytoplasm (known as ...
Ribonucleic acid supplement | iHealth Directory
Ribonucleic acid supplement. If you’ve taken any type of science class, you are familiar with (at least the terms) DNA and RNA. For simplicity’s sake, let’s review: DNA and RNA are nucleic acids that are found in the cytoplasm of every single cell in the body.
RNA interference - Wikipedia
RNA interference (RNAi) is a biological process in which RNA molecules inhibit gene expression or translation, by neutralizing targeted mRNA molecules. Historically, RNAi was known by other names, including co-suppression, post-transcriptional gene silencing (PTGS), and quelling.The detailed study of each of these seemingly different processes elucidated that the identity of these phenomena ...
Rna | Definition of Rna at Dictionary.com
Rna definition, ribonucleic acid: any of a class of single-stranded molecules transcribed from DNA in the cell nucleus or in the mitochondrion or chloroplast, containing along the strand a linear sequence of nucleotide bases that is complementary to the DNA strand from which it is transcribed: the composition of the RNA molecule is identical with that of DNA except for the substitution of the ...
Transfer RNA | chemical compound | Britannica.com
Transfer RNA: Transfer RNA (tRNA), small molecule in cells that carries amino acids to organelles called ribosomes, where they are linked into proteins. In addition to tRNA there are two other major types of RNA: messenger RNA (mRNA) and ribosomal RNA (rRNA). By 1960 the involvement of tRNAs in the assembly of
Ribonucleic acid from baker's yeast (S. cerevisiae ...
Ribonucleic acid; Ribonucleic acid (RNA) from baker′s yeast S. cerevisiae may be used as a substrate for studying ribonuclease activities of enzymes such as RNAase(s).
The Differences Between DNA and RNA - ThoughtCo
DNA stands for deoxyribonucleic acid, while RNA is ribonucleic acid. Although DNA and RNA both carry genetic information, there are quite a few differences between them. This is a comparison of the differences between DNA versus RNA, including a quick summary and a detailed table of the differences.
Nucleotides & Nucleic Acids: ATP, RNA & DNA
Adenosine 5'-triphosphate (ATP) is a multifunctional nucleotide, most important as the "molecular currency" of intracellular energy transfer. Like tiny rechargeable batteries, ATP molecules transport chemical energy within a biological cell. These molecules can move energy around because the phosphate bonds contain a lot of potential energy, which is released when they are broken.
Talking Glossary of Genetic Terms | NHGRI
The Talking Glossary features more than 250 common genetic terms pronounced and explained in an easy-to-understand way by leading scientists and professionals at the National Human Genome Research Institute.