EVERYDAY SCIENCE

Detailed explanation-1: -The mRNA molecules are transported through the nuclear envelope into the cytoplasm, where they are translated by the rRNA of ribosomes (see translation).

Detailed explanation-2: -The mRNA leaves the nucleus through nuclear pores and travels to a ribosome. Here translation or conversion of RNA into an amino acid sequence occurs.

Detailed explanation-3: -The nuclear pore complexes are the only channels through which small polar molecules, ions, and macromolecules (proteins and RNAs) are able to travel between the nucleus and the cytoplasm.

Detailed explanation-4: -The role of mRNA is to carry protein information from the DNA in a cell’s nucleus to the cell’s cytoplasm (watery interior), where the protein-making machinery reads the mRNA sequence and translates each three-base codon into its corresponding amino acid in a growing protein chain.

Detailed explanation-5: -Answer and Explanation: The correct answer is d. mRNA. The type of RNA that travels to the ribosome from the nucleus is called mRNA or messenger RNA.