Central Dogma of Molecular Biology Quiz

What is the primary function of messenger RNA (mRNA) in protein synthesis?

• To store genetic information permanently

• To catalyze chemical reactions

• To carry genetic information from DNA to ribosomes

• To form the structure of ribosomes

What is the correct description of the transcription process?

• Converting amino acids into proteins

• Converting DNA into mRNA

• Converting RNA into DNA

• Converting proteins into amino acids

Where does protein synthesis occur in eukaryotic cells?

• In the nucleus

• In the cytoplasm

• In the Golgi apparatus

• In the endoplasmic reticulum

How many nucleotides constitute a codon?

• Two

• Three

• Four

• Five

Which base is found in RNA but not in DNA?

• RNA contains adenine while DNA doesn't

• RNA contains uracil instead of thymine

• RNA contains cytosine while DNA doesn't

• RNA contains guanine while DNA doesn't

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

• To make copies of DNA

• To transport amino acids to ribosomes

• To store genetic information

• To break down proteins

Which type of mutation is guaranteed to alter the protein sequence?

• Silent mutation

• Frameshift mutation

• Point mutation

• Conservative mutation

What is one of the primary functions of enzymes in biological systems?

• Store genetic information

• Transport oxygen in blood

• Catalyze chemical reactions

• Provide structural support

What occurs when a protein undergoes denaturation?

• The protein gains new functions

• The protein loses its shape and function

• The protein duplicates itself

• The protein becomes more stable

Tags

NGSS.HS-LS1-1

What is the role of RNA polymerase in transcription?

• Breaking down RNA

• Synthesizing DNA

• Synthesizing proteins

• Synthesizing mRNA from DNA template