What is the differences between gene expression transcription and translation in eukaryotic vs prokaryotic cells?

Prokaryotic transcription and translation occur simultaneously in the cytoplasm, and regulation occurs at the transcriptional level. Eukaryotic gene expression is regulated during transcription and RNA processing, which take place in the nucleus, and during protein translation, which takes place in the cytoplasm.

Are there differences between translation in prokaryotes and eukaryotes?

The key difference between eukaryotic and prokaryotic translation is that eukaryotic translation and transcription is an asynchronous process whereas prokaryotic translation and transcription is a synchronous process.

What is the main difference between prokaryotic and eukaryotic genes?

There are several differences between the two, but the biggest distinction between them is that eukaryotic cells have a distinct nucleus containing the cell’s genetic material, while prokaryotic cells don’t have a nucleus and have free-floating genetic material instead.

Does transcription and translation occur in prokaryotes and eukaryotes?

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.

What controls gene expression in eukaryotes?

Gene expression in eukaryotic cells is regulated by repressors as well as by transcriptional activators. Like their prokaryotic counterparts, eukaryotic repressors bind to specific DNA sequences and inhibit transcription. Other repressors compete with activators for binding to specific regulatory sequences.

Do prokaryotes have DNA?

Most prokaryotes carry a small amount of genetic material in the form of a single molecule, or chromosome, of circular DNA. The DNA in prokaryotes is contained in a central area of the cell called the nucleoid, which is not surrounded by a nuclear membrane.

What are the 3 steps in translation?

Translation of an mRNA molecule by the ribosome occurs in three stages: initiation, elongation, and termination.

What are the steps of eukaryotic translation?

Eukaryotic translation is the biological process by which messenger RNA is translated into proteins in eukaryotes. It consists of four phases: initiation, elongation, termination, and recycling.

What is initiation of transcription in eukaryotes?

The initiation of gene transcription in eukaryotes occurs in specific steps. First, an RNA polymerase along with general transcription factors binds to the promoter region of the gene to form a closed complex called the preinitiation complex.

What are the enzymes involved in transcription in eukaryotes?

The enzymes involved in transcription are called RNA polymerases. Prokaryotes have one type; eukaryotes have three types of nuclear RNA polymerases. The prokaryotic RNA polymerase consists of a core enzyme and an auxiliary protein factor called sigma (s factor).

Where does transcription take place in an eukaryotic?

Depending on the type of cell, transcription takes place in either the nucleus or the cytoplasm. Within eukaryotes — cells that contain membrane-bound organelles — transcription occurs in the nucleus.