Transcription Notes

1. Which of the following bases is not found in RNA?

• Cytosine
• Adenine
• Uracil
• Thymine

1. What is the primary purpose of RNA in cells?

• To make proteins from DNA.

• To store genetic information.

• To protect the nucleus.

• To replicate DNA.

1. How does RNA differ from DNA?

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

• • RNA contains thymine instead of uracil

• • RNA contains ribose sugar instead of deoxyribose sugar

• • RNA is found only in the nucleus

1. What is the sugar component in RNA?

• Ribose
• Fructose
• Glucose
• Deoxyribose

1. Which base in RNA pairs with adenine in DNA during transcription?

• uracil
• guanine
• cytosine
• thymine

1. Which of the following bases is not found in RNA?

• Cytosine
• Adenine
• Uracil
• Thymine

1. What is the role of messenger RNA (mRNA)?

• TO direct DNA replication.

• To transport amino acids to the nucleus.

• To carry a copy of the DNA sequence out of the nucleus.

• To act as a structural component of the cell membrane.

1. What is the function of transfer RNA (tRNA)?

• To catalyze transcription.

• To carry amino acids to the ribosome.

• To form the structure of ribosomes.

• To carry genetic information out of the nucleus.

1. What is the main role of ribosomal RNA (rRNA)?

• To splice mRNA.

• To transport amino acids to the ribosome.
• To form the core of ribosome structure & catalyze protein synthesis.

• To copy DNA.

1. Which of the following describes the transcription process?

• DNA is translated into proteins.

• mRNA is transcribed into DNA.

• Proteins are synthesized into DNA.

• DNA is transcribed into mRNA.