RNA: RNA (ribonucleic acid) is a type of nucleic acid that plays a crucial role in the synthesis of proteins. It is single-stranded and contains ribose sugar and nitrogenous bases adenine (A), guanine (G), cytosine (C), and uracil (U). ...
DNA is a double-stranded molecule that contains an organism's genetic code, carrying the genes that give rise to all living things. RNA is a single-stranded molecule that carries genetic information it receives from the DNA, putting this information into practice. RNA synthesizes the panoply...
DNA is a double-stranded macromolecule in which each strand is a polymer of deoxyribonucleotide monomers. The monomers are linked by "phosphodiester bonds" between the 3' carbon of one deoxyribose molecule and the 5' carbon of another. Since an ester is a condensation product of an alcohol (...
What is the role of RNA polymerase in transcription? A) RNA polymerase signals the end of the mRNA molecule. B) RNA polymerase catalyzes the unwinding of the DNA double helix. C) RNA polymerase binds the DNA promoter and builds an mRNA molecule. D) RNA ...
The content of adenine in a double-stranded DNA molecule is 15%, and the content of cytosine is ___ 相关知识点: 试题来源: 解析 (1)35% 先求出跑了2圈的路程,求还差多少米是1000米,用1000米减去2圈跑的路程,即为答案.反馈 收藏
The ATR-CHK1 DNA damage response pathway becomes activated by the exposure of RPA-coated single-stranded DNA (ssDNA) that forms as an intermediate during DNA damage and repair, and as a part of the replication stress response. Here, we identify ZNF827 as a component of the ATR-CHK1 kinase...
Single stranded DNA or RNA is enzymatically catalyzing a chemical reaction, cleavaging a predetermined diseased nucleic acid molecule; polymerasesdoi:US20040009510 A1Nucleic acid sensor molecules and methods are provided for the detection and amplification of signaling agents using enzymatic nucleic acid ...
SARS-CoV-2 is a positive single-stranded RNA virus belonging to the beta-coronavirus genus that includes SARS-CoV and MERS-CoV [5,6]. During infection, the binding of the SARS-CoV spike protein (SP) to the host cellular receptor angiotensin-converting enzyme 2 (ACE2) has been well demons...
Under a Creative Commons license open accessToll-like receptors (TLRs) are the basic signaling receptors of the innate immune system. They are activated by molecules associated with pathogens or injured host cells and tissue. TLR3 has been shown to respond to double stranded (ds) RNA, a replic...
Why does RNA form a secondary structure even though it exists as a single-stranded molecule? Why do viruses contain only DNA or RNA? Is it possible for a virus to contain both of them? How is RNA formed from DNA? Why are there so many different kinds of transfer RNA? Why is it hard...