What is RNA?

Multiple Choice

Which of the following is NOT a difference between RNA and DNA?

• RNA contains uracil instead of thymine.

• RNA is generally single-stranded, not double-stranded.

• The sugar in RNA is deoxyribose instead of ribose.

• DNA contains thymine instead of uracil.

Multiple Select

Which of the following statements about ribosomal RNA (rRNA) are correct?

• Protein synthesis occurs on ribosomes, which are made up of two subunits.

• Each ribosome contains only one molecule of rRNA.

• Ribosomal subunits consist of several molecules of rRNA and up to 80 different proteins.

• Ribosomes are found only in the nucleus.

Multiple Choice

During protein synthesis, what is the main role of transfer RNA (tRNA)?

• It carries amino acids from the cytoplasm to the mRNA.

• It synthesizes proteins directly.

• It serves as a template for DNA replication.

• It forms the structure of ribosomes.

Open Ended

Explain the process of transcription and the role of RNA polymerase in RNA synthesis.

Multiple Choice

What is the role of promoters in RNA synthesis?

• They signal RNA polymerase where to bind on the DNA.

• They code for proteins.

• They remove introns from RNA.

• They add a cap and tail to mRNA.

1. It's a crucial process that diversifies gene expression

2. It allows for a single gene to produce multiple functionally distinct proteins.

​RNA Editing is important because...

Open Ended

Explain the process of RNA editing as shown in the diagram. Why is it important for RNA molecules to undergo editing before they are ready to be read?

Open Ended

Reflecting on today's lesson, what is one question you still have about how the cell makes RNA or how RNA functions in the cell?

Multiple Choice

How does RNA differ from DNA?

• RNA contains ribose sugar while DNA contains deoxyribose sugar.

• RNA is double-stranded while DNA is single-stranded.

• RNA uses thymine as a base while DNA uses uracil.

• RNA is only found in the nucleus while DNA is found throughout the cell.