Each gene on a chromosome can be thought of as the instructions for making a particular protein in a cell. Examples of these other kinds of RNA are transfer RNA (tRNA) and ribosomal RNA (rRNA), which are both critical to the process of protein synthesis. ...
What is transcription and give examples?
The definition of a transcription is something fully written out, or the process of fully writing something out. An example of a transcription is someone writing out their complete job description and responsibilities . noun.
What is an example of transcription biology?
In biology, transcription is the process of transcribing or making a copy of the genetic information stored in a DNA strand into a complementary strand of RNA (messenger RNA or mRNA) with the aid of RNA polymerases. In prokaryotes, the process occurs in the cytoplasm. In eukaryotes, it takes place inside the nucleus.
What is transcription in biology simple definition?
Definitions. Transcription is the process of making an RNA copy of a gene sequence . This copy, called a messenger RNA (mRNA) molecule, leaves the cell nucleus and enters the cytoplasm, where it directs the synthesis of the protein, which it encodes.
What are examples of transcription factors?
| Examples of specific transcription factors | Factor Structural type Recognition sequence | SP1 Zinc finger 5′-GGGCGG-3′ | AP-1 Basic zipper 5′-TGA(G/C)TCA-3′ | C/EBP Basic zipper 5′-ATTGCGCAAT-3′ |
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How do you explain transcription?
Transcription is the process by which the information in a strand of DNA is copied into a new molecule of messenger RNA (mRNA) . DNA safely and stably stores genetic material in the nuclei of cells as a reference, or template.
What are the steps of transcription simple?
Transcription takes place in three steps: initiation, elongation, and termination . The steps are illustrated in Figure 2. Figure 2. Transcription occurs in the three steps—initiation, elongation, and termination—all shown here.
How do you use transcription in a sentence?
- You can listen to the audio version of the podcast or wait to read the transcription.
- A transcription of the client’s medical records was placed inside the file once copied.
- The attorney requested a transcription of all of the witness’s names and addresses.
What are the two types of transcription?
Phonetic and orthographic transcription
There are two main types of linguistic transcription.
What is transcription in your own words?
The word transcribe means to copy or write down information . Transcription is the process of literally transcribing the genetic information stored in DNA into RNA. It’s the first step in protein synthesis. ... Instead, you take down a version of the information in your own words.
What are the 3 main steps of transcription?
It involves copying a gene’s DNA sequence to make an RNA molecule. Transcription is performed by enzymes called RNA polymerases, which link nucleotides to form an RNA strand (using a DNA strand as a template). Transcription has three stages: initiation, elongation, and termination .
What is the purpose of transcription?
The purpose of transcription is to produce an mRNA copy of a gene, to allow the genetic information to pass out of the nucleus, through the nuclear pores where it can be used to assemble a protein . Enzyme DNA helicase uncoils a region of the DNA double-helix by breaking the hydrogen bonds between the base pairs.
How is transcription best defined?
Transcription, the synthesis of RNA from DNA . Genetic information flows from DNA into protein, the substance that gives an organism its form. This flow of information occurs through the sequential processes of transcription (DNA to RNA) and translation (RNA to protein).
What is a positive transcription factor?
To add to Noel’s answer, positive transcription factor or activator bind to its activation site in the promoter region and modulate the DNA-protein or chromatin configuration in a manner that facilitates RNA polymerase binding at specific transcription start site for the onset of transcription.
What triggers transcription?
Transcription begins when RNA polymerase binds to a promoter sequence near the beginning of a gene (directly or through helper proteins). RNA polymerase uses one of the DNA strands (the template strand) as a template to make a new, complementary RNA molecule. Transcription ends in a process called termination.
What increases transcription?
Enhancers : An enhancer is a DNA sequence that promotes transcription. Each enhancer is made up of short DNA sequences called distal control elements. Activators bound to the distal control elements interact with mediator proteins and transcription factors.
