DNA to Protein Synthesis EX

What is DNA?

• A type of protein

• A biomolecule that contains genetic information

• A cell membrane component

• An enzyme that digests food

How is DNA similar to a set of instructions?

• It determines the structure of cell membranes.

• It controls all aspects of an organism by determining physical traits.

• It is shuffled like cards to create different proteins.

• It is the same in every cell, so it cannot create different proteins.

What is the role of histones in the organization of DNA?

• They replicate DNA during cell division.

• They are involved in the transcription of mRNA.

• They help in wrapping DNA strands into chromatin.

• They modify the genetic code of DNA.

What would happen if the DNA in a human cell were stretched out in a straight line?

• It would be about two meters long.

• It would form a double helix.

• It would become a chromosome.

• It would only be a few micrometers in length.

What is the significance of DNA being able to fold and coil within a cell?

• It allows DNA to fit within the tiny cellular nucleus.

• It enables DNA to directly interact with ribosomes.

• It prevents DNA from being copied during cell division.

• It helps DNA to dissolve in the cytoplasm.

What is a chromosome?

• A type of cell

• A protein that DNA wraps around

• A structure formed by tightly coiled DNA

• An enzyme that helps in DNA replication

What is the function of mRNA in the process of protein synthesis?

• It replicates the DNA inside the nucleus.

• It carries the DNA "message" from the nucleus to the cytoplasm.

• It folds into a complex structure to perform specific functions.

• It acts as a receptor for steroid hormones.

What is the difference between DNA and mRNA?

• mRNA contains the nucleotide uracil instead of thymine.

• mRNA is a double-stranded molecule, while DNA is single-stranded.

• DNA can travel outside of the nucleus, but mRNA cannot.

• DNA is involved in the creation of cell structures, whereas mRNA is not.

What triggers the cell to create a needed protein according to Figure 5?

• The replication of DNA inside the nucleus.

• The binding of a steroid hormone to its receptor.

• The transcription of mRNA from DNA.

• The folding of mRNA into a complex structure.

What is the first step in protein synthesis?

• Translation

• Replication

• Transcription

• Folding