Question

question 7 of 10
which part of the cell contains the instructions that ribosomes use to assemble proteins?
a. nucleus
b. mitochondrion
c. cytoplasm
d. amino acid

Explanation:

The nucleus contains DNA which has the genetic instructions for protein - synthesis. Ribosomes use these instructions (transcribed into mRNA) to assemble proteins. Mitochondria are for energy production, cytoplasm is the fluid part of the cell where many processes occur but not the source of protein - assembly instructions, and amino acids are the building blocks of proteins, not the source of instructions.

Answer:

A. Nucleus