Unit 5: RNA Notes

Multiple Choice

What is the main difference between DNA and RNA based on their nitrogen bases?

• DNA contains thymine while RNA contains uracil.

• DNA contains uracil while RNA contains thymine.

• Both DNA and RNA contain thymine.

• Both DNA and RNA contain uracil.

Multiple Choice

Which of the following are types of RNA and their correct functions?

• mRNA carries genetic info, tRNA matches amino acids, rRNA makes up ribosomes

• mRNA makes up ribosomes, tRNA carries genetic info, rRNA matches amino acids

• mRNA matches amino acids, tRNA makes up ribosomes, rRNA carries genetic info

• mRNA carries amino acids, tRNA makes up ribosomes, rRNA carries genetic info

Multiple Choice

What is the role of a ribosome in RNA?

• Ribosomes transport nutrients within the cell.
• Ribosomes store genetic information.
• Ribosomes are responsible for DNA replication.
• Ribosomes synthesize proteins by translating mRNA.

Multiple Select

Which of the following statements about amino acids are correct?

• They are the building blocks of proteins

• There are about 20 different kinds

• They all have the same shape

• They fit together like Legos to form proteins