Can a gene be transcribed simultaneously several polymerases?

Multiple polymerases can transcribe a single bacterial gene while numerous ribosomes concurrently translate the mRNA transcripts into polypeptides.

Can a single gene be transcribed multiple times at once?

A single gene can be transcribed multiple times. The mRNA molecule is divided up into codons. A codon is a series of three consecutive mRNA bases coding for one specific amino acid.

How many RNA polymerase are in prokaryotes and eukaryotes?

Prokaryotes have only one RNA Polymerase, while eukaryotes have three (RNA Polymerases I, which transcribes rRNA; II, which transcribes mRNA; and III, which transcribes tRNA). The difference in molecular weight between the prokaryotic polymerase and Pol II in eukaryotes is 100 kDa (400 kDa to 500 kDa).

Do both eukaryotic and prokaryotic cells do simultaneous transcription and translation?

Prokaryotic transcription and translation can occur simultaneously. This is impossible in eukaryotes, where transcription occurs in a membrane-bound nucleus while translation occurs outside the nucleus in the cytoplasm.

How many types of RNA polymerases exist in cells write their names & functions?

There are three RNA polymerases found in eukaryotic cells: (i) RNA polymerase-I : It is used to transcribes 5.8s, 18s and 28s RNA. (b) RNA polymerase-II : It is involved in the transcription of MRNA precursors. It also catalyzes the formation of small nuclear RNA’s and mRNA.

How many types of RNA polymerases exist in cells write their names and functions?

Eukaryotic cells contain three distinct nuclear RNA polymerases that transcribe different classes of genes (Table 6.1). Protein-coding genes are transcribed by RNA polymerase II to yield mRNAs; ribosomal RNAs (rRNAs) and transfer RNAs (tRNAs) are transcribed by RNA polymerases I and III.

Why might a cell employ several RNA polymerases to produce multiple RNA transcripts of a gene at any one time?

A single gene can be transcribed simultaneously by several RNA polymerases at a time. This helps the cell make the encoded protein in large amounts. Termination – Transcription proceeds until after the RNA polymerase transcribes a terminator sequence in the DNA.

How do eukaryotic and prokaryotic RNA polymerases compare?

The main difference between prokaryotic and eukaryotic RNA polymerase is that prokaryotes have a single type of RNA polymerase, whereas eukaryotes have three main types of RNA polymerases. Prokaryotic and eukaryotic RNA polymerase are the two types of RNA polymerases present in organisms.

How do bacterial and eukaryotic RNA polymerases differ in their binding to promoter sequences?

Both prokaryotic and eukaryotic transcriptions use a common enzyme, RNA polymerase, to transcribe DNA into RNA. Prokaryotes utilize one RNA polymerase for all transcription of types of RNA. However, a difference in the number of promoter sequences allows for transcription in eukaryotes to be more highly regulated.

Is RNA in both prokaryotic and eukaryotic cells?

Both prokaryotic and eukaryotic transcriptions use a common enzyme, RNA polymerase, to transcribe DNA into RNA. Prokaryotes utilize one RNA polymerase for all transcription of types of RNA. Each of the three RNA polymerases in eukaryotes is responsible for transcribing a unique type of RNA.

Which of the following processes happens simultaneously in eukaryotic RNA?

Explanation: In eukaryotes, transcription and splicing could occur simultaneously. Both of these processes take place in the nucleus of the cell, while translation takes place in the cytoplasm.