Bio Final Exam REVIEW 1

What is the basic building block of DNA?

• Amino acid

• Nucleotide

• Fatty acid

• Monosaccharide

Which nitrogenous base is found in RNA but not in DNA?

• Thymine

• Adenine

• Uracil

• Guanine

What is the function of mRNA in protein synthesis?

• Carries amino acids to the ribosome

• Stores genetic information

• Transports the genetic code from DNA to ribosome

• Forms the structure of ribosomes

Which enzyme is responsible for unzipping the DNA double helix during replication?

• DNA polymerase

• Ligase

• Helicase

• RNA polymerase

What is a codon?

• A three-nucleotide sequence on mRNA

• A protein

• A type of mutation

• An enzyme

Which molecule brings amino acids to the ribosome during translation?

• mRNA

• tRNA

• DNA

• rRNA

What is the complementary base pair for adenine in DNA?

• Guanine

• Cytosine

• Thymine

• Uracil

Which of the following is a type of mutation?

• Replication

• Substitution

• Translation

• Transcription

Tags

NGSS.HS-LS3-2

What is the shape of the DNA molecule?

• Single helix

• Double helix

• Linear chain

• Circular

What does a codon wheel help you determine?

• The structure of DNA

• The amino acid coded by a codon

• The type of mutation

• The number of chromosomes