Question

In eukaryotic cell transcription, RNA splicing and RNA capping take place inside the?

• A. ER
• B. Nucleus
• C. Ribosomes
• D. Dictyosomes

Answer 1

The correct option is B

Nucleus

The correct answer is B:

Explanation of the correct answer:

1. In eukaryotes, the cell transcription RNA splicing and RNA capping take place inside the nucleus because the eukaryotic transcription and translation will be compartmentally separated.
2. The DNA is located in the nucleus, transcription—the process of creating mRNA from DNA—must take place there. Unless the cell is dividing, DNA is always found inside the nucleus. Before exiting the nucleus, the mRNA produced here is processed.
3. Because the eukaryotic nucleus is a separate compartment within the cell, transcription, and splicing can continue before translation starts. Translation, therefore, takes place in the cytoplasm of eukaryotes whereas transcription takes place in the nucleus.

Explanation of the incorrect options:

Option A:

1. By signal recognition particle, the translation will be directed to the Endoplasmic reticulum from cytoplasm or ribosomes
2. In particular, the synthesis, folding, modification, and transport of proteins are all processes carried out by the endoplasmic reticulum (ER).

Option C:

1. The processed mRNA will be transported to the cytoplasm where it can be translated by ribosomes.
2. The process of making proteins in a cell takes place at an intercellular structure called a ribosome, which is formed of both RNA and protein. The messenger RNA (mRNA) sequence is read by the ribosome, which then converts the genetic code into a specific string of amino acids that develop into extended chains and fold to create proteins.

Option D:

1. In dictyosomes processing of proteins takes place. Dictyosomes are also known as the Golgi apparatus.
2. Enzymes produced on the endoplasmic reticulum are also modified and transported by dictyosomes to the desired subcellular compartment or structure. The alteration, packing, and secretion of chemicals are therefore the primary roles of the dictyosomes.

Final answer: In eukaryotic cell transcription, RNA splicing and RNA capping take place inside the nucleus.