In eukaryotic cells, cellular respiration takes place in the: a. nuclei b. cytoplasm c. mitochondria d. cell walls e. centriolesWhich one of the following is associated with bacterial cells? a. Ribosomes b. Nucleus c. Chloroplasts d. Lysos...
Transcription is the process that converts a gene in DNA to messenger RNA (mRNA), which can then go on to be translated to a protein during translation (see Figure 2). The “central dogma of molecular biology” begins with transcription that takes place in the nucleus of eukaryotic cells o...
In eukaryotic cells like photoreceptors, gene expression is often controlled primarily at the level of transcription. However, that doesn’t mean transcription is the last chance for regulation. Later stages of gene expression can also be regulated, including the following: ...
Eukaryotic genome is packaged into chromatin. Thus, transcription takes place in the context of chromatin that is an array of nucleosomes. Nucleosome poses a barrier for the gene regulatory factors to access DNA for transcription to occur. Fortunately, eukaryotic cells have evolved mechanisms of ...
Where is DNA found in a eukaryotic cell? How is transcription different in eukaryotic and prokaryotic cells? In what part of the cell does transcription occur? What are the transcription and the translation processes in DNA? In eukaryotes, transcription takes place in the \text{___} and tra...
The process in a cell by which genetic material is copied from a strand of DNA to a complementary strand of RNA (called messenger RNA). Transcription takes place in the nucleus before messenger RNA is transported to the ribosomes, the places in the cell where proteins are made. ...
d.Termination of eukaryotic gene transcription In contrast to the termination of transcription in prokaryotes which takes place precisely at the 3′ end of the mRNA, that of eukaryotes occurs usually beyond the normal 3′ end of mRNA. The 3′ ends of nonhistone eukaryotic mRNAs are generated by...
Numerous biochemical andgeneticstudies have identified the key components of the transcription machinery and the mechanisms of the keyenzymethat in eukaryotic cells mediates transcription, theRNApolymeraseII(Pol II). In addition to RNA Pol II, the structurally similar RNA Pol I and III are found in...
We proved that replication initiation also takes place at the periphery of a TAD in non-synchronized cells (Additional file 1: Figure S6), consistent with the observation in aphidicolin-treated cells. Besides HeLa cells, we also checked other cell lines including hRPE, U2OS, and MDA-MB-231 ...
Transcription–translation coupling has served as a paradigm on how macromolecular machines can cooperate inside cells. Here, using in vitro reconstitution of the complete active transcription–translation machinery and using multi-colour single-molecule imaging, we have simultaneously tracked transcription and...