Ribonucleic acids (RNAs) consist of linear arrays of bases, some of which have the hydrogen-bonding capacity to interact with others to form base pairs. In addition to the standard Watson–Crick base pairings, RNAs have unusual base pairings that give rise to the many tertiary structures that ...
What is the nucleotide sequence on a section of DNA where transcription begins? Which DNA polymerase synthesizes the leading strand? What are the DNA base pairing rules? What has an RNA genome? Which type of RNA is found only in eukaryotes?
Its full form isRibonucleic acid.This isa polymer of subunitsjoined by phosphodiester bonds. It is a single-stranded nucleic acid similar to DNA but having ribose sugar rather than deoxyribose sugar and uracil instead of thymine as on...
A nucleic acid present in all living cells and many viruses, consisting of a long, usually single-stranded chain of alternating phosphate and ribose units, with one of the bases adenine, guanine, cytosine, or uracil bonded to each ribose molecule. RNA molecules are involved in protein synthesis...
Thehelicase enzymethen plays its role by breaking the hydrogen bonds causing a specific region of the DNA double helix to startunwinding. As this occurs the two strands are separated and the nitrogen bases are exposed to...
RNA的合成即DNA的转录：DNA复制最重要的特征是半保留复制，即DNA复制时，DNA双链中的互补碱基之间的氢键断裂，解为两条单链，各以一条单链为模板，按碱基互补原则合成新的互补链，新合成的两个DNA分子和亲代DNA分子是完全一致。在子代DNA分子中一条单链来自亲代，另一条是新合成的，这种复制方式称半...
using ATP while complementarily pairing bases and forming the phosphodiester–ribose backbone. Many RNA transcripts may be rapidly produced from a single copy of a gene, as multiple RNA polymerases may be transcribing the gene simultaneously, spaced out from one another. An important proofreading mec...
anticodons are found on the end of each tRNA molecule. And on the other end, tRNA molecules are attached to a specific amino acid. Thus the complementary base pairing between mRNA and tRNA allows the sequence of nucleotides in mRNA to be converted, or translated, into a sequence of amino ...
RNA, complex compound of high molecular weight that functions in cellular protein synthesis and replaces DNA as a carrier of genetic codes in some viruses. RNA consists of ribose nucleotides and the nitrogenous bases adenine, guanine, cytosine, and uraci
Which bases are found in DNA and RNA? What are the three main types of RNA? List the three types RNA. How many bases can be found in RNA? Name the four nitrogenous bases that make up DNA. What are the RNA base pairing rules? What base is found on RNA but not on the DNA? What...