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DNA discovered
Contributed by: Ball
  • 1. Who discovered the structure of DNA?
A) Gregor Mendel
B) Rosalind Franklin
C) James Watson and Francis Crick
D) Charles Darwin
  • 2. In which year was the structure of DNA discovered?
A) 1960
B) 1953
C) 1945
D) 1972
  • 3. What is the full form of DNA?
A) Deoxyribonucleotide Acid
B) Deoxyribonucleic Acid
C) Double Nucleic Acid
D) Dinucleic Acid
  • 4. The shape of the DNA molecule is most commonly described as?
A) Linear
B) Spiral
C) Triple Strand
D) Double Helix
  • 5. Which base pairs with Adenine in a DNA molecule?
A) Uracil
B) Thymine
C) Cytosine
D) Guanine
  • 6. DNA is located in which part of a eukaryotic cell?
A) Nucleus
B) Cytoplasm
C) Mitochondria
D) Endoplasmic Reticulum
  • 7. Which technique was crucial in determining the structure of DNA?
A) Chromatography
B) X-ray crystallography
C) Electrophoresis
D) Microscopy
  • 8. Which of the following is a purine base in DNA?
A) Cytosine
B) Thymine
C) Guanine
D) Uracil
  • 9. Which nitrogenous base replaces thymine in RNA?
A) Uracil
B) Cytosine
C) Guanine
D) Adenine
  • 10. What is the primary function of DNA?
A) To regulate cellular processes
B) To synthesize proteins
C) To store and transmit genetic information
D) To provide energy to cells
  • 11. How many hydrogen bonds are there between Adenine and Thymine in a DNA molecule?
A) Three
B) Four
C) One
D) Two
  • 12. What is the term for the process of making an RNA copy of a gene sequence?
A) Translation
B) Transcription
C) Replication
D) Mutation
  • 13. What is the enzyme responsible for adding telomeric repeats to the ends of chromosomes?
A) DNA polymerase
B) Telomerase
C) Helicase
D) DNA ligase
  • 14. Which of the following diseases is associated with a mutation in the DNA repair gene BRCA1?
A) Huntington's disease
B) Sickle cell anemia
C) Breast cancer
D) Cystic fibrosis
  • 15. What is the term for a change in the DNA sequence that leads to a different protein being produced?
A) Deletion
B) Mutation
C) Translocation
D) Insertion
  • 16. What is the term for the process of cutting DNA into smaller fragments using restriction enzymes?
A) Gel electrophoresis
B) DNA ligation
C) Restriction digestion
D) Polymerase chain reaction
  • 17. Who helped Watson and Crick with X-ray diffraction data of DNA?
A) Rosalind Franklin
B) Charles Darwin
C) Gregor Mendel
D) Marie Curie
  • 18. What holds the two strands of DNA together?
A) Van der Waals Forces
B) Covalent Bonds
C) Hydrogen Bonds
D) Ionic Bonds
  • 19. What is the process by which DNA makes an exact copy of itself?
A) DNA Replication
B) Transcription
C) Mutation
D) Translation
  • 20. What enzyme is responsible for unwinding the DNA double helix during replication?
A) Helicase
B) Primase
C) Polymerase
D) Ligase
  • 21. In a DNA molecule, which nitrogenous base pairs with guanine?
A) Uracil
B) Thymine
C) Adenine
D) Cytosine
  • 22. Which technique is used to amplify a specific segment of DNA?
A) Southern Blotting
B) Gel Electrophoresis
C) PCR (Polymerase Chain Reaction)
D) DNA Sequencing
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