How many amino acids are encoded by the following mRNA sequence:UAUCAUCCACUUGGUUGA? () A.4B.6C.7D.5E.试题解析:本题考查的是遗传密码的知识F.遗传密码核酸中,核苷酸序列指定蛋白质中的氨基酸序列的一种方式,是由三个核苷酸组成的三联体密码,密码子是相连的,中间没有任何停顿。共有64中密码子,其中61个...
Why DNA is transcribed into mRNA to synthesize proteins? Explain. How do you determine minimum codon length? How are RNA and DNA used to make proteins? How many amino acids are coded for by the DNA? How does an anticodon participate in protein synthesis?
How many base pairs code for an amino acid? A) How many amino acids are there? B) Is there more than one codon for each amino acid? How many unique codons are there? a. 16 b. 20 c. 61 d. 64 How many amino acids were coded for the mRNA?
Except for Tryptohan and Methionine, all amino acids are coded by more than one triplet, therefore, it is undecidable which source code letter was actually sent from mRNA. This proof has a corollary telling that there are no such mathematical constraints for protein-protein communication. With ...
A possibility of the specific interaction of amino acids with nucleotides has been discussed by many researchers, but is still considered unproved. Consequence 1. Emergence of the first genetic system from progenes and its self-reproduction on basis of the progenes Progenes are the substrate for...
This messenger RNA, which has all the information of the gene, binds itself to a particle, called a ribosome, which is known to connect the building blocks of proteins, called amino acids, connecting one to the next, according to the instructions in the messenger RNA. ...
The genetic code sets the correspondence between the sequence of a given nucleotide triplet in an mRNA molecule, called a codon, and the amino acid that is added to the growing polypeptide chain during protein synthesis. With four bases (A, G, U, and C), there are 64 possible triplet cod...
N6-methyladenosine (m6A) is a post-transcriptional modification that controls gene expression by recruiting proteins to RNA sites. The modification also slows biochemical processes through mechanisms that are not understood. Using temperature-dependent (
originated from stem cells in the first trimester of the embryo. At this juncture, the body assigns chemical “designators” to unspecialized, unspecified cell types that determine their function and type. They are also the same size and shape, but they carry different amounts of DNA and mRNA...
Amino acids that contact FP are displayed in red, and those that contact glycan are labeled in green rectangle. Rare mutations are shown in lowercase. (C) Schematic diagram of VRC34 developmental pathway. Degree of SHM for each VRC34 intermediate is given as % nucleotide mutated (vH/vL) ...