NR-CHM Ch26

What is the central dogma of molecular biology?

• DNA -> RNA -> Protein

• RNA -> DNA -> Protein

• Protein -> RNA -> DNA

• DNA -> Protein -> RNA

Which enzyme is responsible for transcription?

• DNA polymerase

• RNA polymerase

• Ligase

• Helicase

Where does transcription occur in eukaryotic cells?

• Cytoplasm

• Ribosome

• Nucleus

• Mitochondria

What is the function of mRNA?

• Carries genetic information from DNA to ribosomes

• Brings amino acids to ribosomes

• Forms ribosomes

• Catalyzes peptide bond formation

What is a codon?

• A three-nucleotide sequence in mRNA

• A protein synthesis site

• A DNA binding protein

• A ribosomal subunit

Which of the following RNA types carries amino acids to the ribosome?

• mRNA

• rRNA

• tRNA

• miRNA

What is the start codon in most organisms?

• UAA

• UGA

• AUG

• UAG

Which organelle is the site of translation?

• Nucleus

• Ribosome

• Mitochondria

• Golgi apparatus

What are the components of a ribosome?

• DNA and protein

• RNA and protein

• Lipids and carbohydrates

• Proteins only

What is the function of rRNA?

• Transports amino acids

• Forms ribosomes and helps with translation

• Carries genetic code

• Unzips DNA strands