Biology 10 Quarter 3 Reviewer: Parts of DNA Replication
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Questions and Answers

What is the full name of DNA?

  • Nucleic Acid
  • Deoxyribonucleic Acid (correct)
  • Ribonucleic Acid
  • Genetic Material

What is the process called where DNA is replicated to make more strands of DNA?

  • Replication (correct)
  • Translation
  • Transcription
  • Recombination

What is the relationship between the two DNA strands during replication?

  • Identical
  • Antiparallel (correct)
  • Parallel
  • Complementary

What is the name of the enzyme that separates the DNA strands during replication?

<p>Helicase (A)</p> Signup and view all the answers

What is the relationship between the new and old DNA strands during replication?

<p>The new strands are a combination of old and new material. (D)</p> Signup and view all the answers

How many hydrogen bonds are formed between a Cytosine and Guanine nucleotide pair?

<p>3 (A)</p> Signup and view all the answers

What are the four nitrogenous bases found in DNA?

<p>Adenine, Thymine, Guanine, Cytosine (A)</p> Signup and view all the answers

What is the role of the enzyme 'primase' in DNA replication?

<p>Primase creates a 'primer' that marks the creation of new DNA strands (D)</p> Signup and view all the answers

What is the direction of DNA synthesis by the polymerase enzyme?

<p>The polymerase enzyme can only add bases in the 5' to 3' direction (D)</p> Signup and view all the answers

What is the role of the 'ligase' enzyme in DNA replication?

<p>Ligase seals up the DNA strands after the polymerase adds the complementary bases (A)</p> Signup and view all the answers

What is the direction of RNA synthesis by the RNA polymerase enzyme?

<p>RNA polymerase synthesizes RNA in the 5' to 3' direction (C)</p> Signup and view all the answers

What is the role of the 'exonuclease' enzyme in protein synthesis?

<p>Exonuclease removes the RNA primers from the messenger RNA before it can be used as a template for protein synthesis (B)</p> Signup and view all the answers

What is the main function of a codon?

<p>To specify a particular amino acid in protein synthesis (D)</p> Signup and view all the answers

What is the role of tRNA in protein synthesis?

<p>To carry amino acids to the ribosome (C)</p> Signup and view all the answers

What is the first step in the decoding process of protein synthesis?

<p>Get the 3-base code of the DNA (D)</p> Signup and view all the answers

Which of the following is an example of a mutagen?

<p>Ultraviolet radiation (A)</p> Signup and view all the answers

What is the main function of DNA replication?

<p>To create identical copies of the DNA molecule (C)</p> Signup and view all the answers

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