- 1. The Double Helix, written by James D. Watson and published in 1968, is a captivating autobiographical account that chronicles the groundbreaking discovery of the double helical structure of DNA in the early 1950s. In this influential work, Watson provides an intimate and often candid narrative of the scientific journey, detailing his collaboration with fellow scientist Francis Crick, along with the contributions of key figures like Rosalind Franklin and Maurice Wilkins. The book not only illuminates the complexities and challenges of molecular biology and genetics but also explores the personal dynamics, rivalries, and ethical dilemmas faced by scientists in pursuit of knowledge. Watson's engaging prose brings to life the excitement and urgency of their research, showcasing the interplay between creativity and meticulous scientific effort. Through a blend of science, biography, and memoir, The Double Helix offers readers a fascinating glimpse into the process of scientific discovery and the euphoria of understanding the fundamental mechanisms of life itself.
What does the double helix structure describe?
A) The structure of RNA
B) The structure of lipids
C) The structure of proteins
D) The structure of DNA
- 2. What technique was crucial in discovering the structure of DNA?
A) Electrophoresis
B) X-ray crystallography
C) NMR spectroscopy
D) Mass spectrometry
- 3. What year was the double helix structure of DNA proposed?
A) 1960
B) 1970
C) 1953
D) 1945
- 4. What is the backbone of the DNA molecule composed of?
A) Amino acids
B) Fatty acids
C) Sugar and phosphate
D) Nucleotides
- 5. What are the four bases in DNA?
A) Adenine, Uracil, Cytosine, Guanine
B) Adenine, Thymine, Cytosine, Ribose
C) Adenine, Thymine, Cytosine, Guanine
D) Adenine, Thymine, Uracil, Guanine
- 6. Which base pairs with Adenine in DNA?
A) Guanine
B) Thymine
C) Cytosine
D) Uracil
- 7. Which scientist provided critical X-ray diffraction images of DNA?
A) Rosalind Franklin
B) Marie Curie
C) Barbara McClintock
D) Ada Lovelace
- 8. What shape is the DNA molecule?
A) Circular
B) Triple helix
C) Single strand
D) Double helix
- 9. Why is DNA described as antiparallel?
A) Strands are of equal length
B) Strands are identical
C) Strands twist in the same direction
D) Strands run in opposite directions
- 10. What type of bond holds the base pairs together in DNA?
A) Covalent bonds
B) Metallic bonds
C) Ionic bonds
D) Hydrogen bonds
- 11. What does the term 'complementary base pairing' refer to?
A) The structure of proteins
B) Specific base pairs that match
C) The base composition of RNA
D) The replication of proteins
- 12. Who published the double helix model first?
A) Hershey and Chase
B) Watson and Crick
C) Mendel and Darwin
D) Franklin and Wilkins
- 13. What did Watson compare the structure of DNA to?
A) A tree
B) A spiral staircase
C) A circle
D) A straight ladder
- 14. What term describes the genetic code's simplicity and specificity?
A) Codon
B) Allele
C) Punctuated equilibrium
D) Gene expression
- 15. What is a nucleotide composed of?
A) A protein and a carbohydrate
B) A sugar, a phosphate group, and a nitrogenous base
C) Two sugars and one phosphate
D) A lipid and a sugar
- 16. What is the relationship between DNA and RNA?
A) DNA is synthesized from RNA
B) RNA is synthesized from DNA
C) DNA and RNA are identical
D) RNA is more stable than DNA
- 17. Which paired bases are connected by three hydrogen bonds?
A) Cytosine and Thymine
B) Adenine and Uracil
C) Adenine and Thymine
D) Guanine and Cytosine
- 18. Which base pairs with Guanine in DNA?
A) Thymine
B) Adenine
C) Uracil
D) Cytosine
- 19. What played a significant role in the acceptance of the double helix model?
A) The Tonic Water Experiment
B) The Meselson-Stahl experiment
C) The Hershey-Chase Experiment
D) Photo 51
- 20. What did Watson and Crick call their model of DNA?
A) The double strand
B) The helical model
C) The double helix
D) The twisted ladder
- 21. Which Nobel Prize did Watson and Crick later receive?
A) Peace
B) Chemistry
C) Physics
D) Physiology or Medicine
- 22. In what year was 'The Double Helix' published?
A) 1982.
B) 1953.
C) 1975.
D) 1968.
- 23. In what form is genetic information stored?
A) In carbohydrates
B) In lipids
C) In the sequence of bases
D) In proteins
- 24. What term describes the units that make up DNA?
A) Nucleotides
B) Amino acids
C) Proteins
D) Lipids
- 25. What publication first reported the double helix structure of DNA?
A) Genetics.
B) Nature.
C) Cell.
D) Science.
- 26. Who received the Nobel Prize alongside Watson and Crick?
A) Rosalind Franklin
B) Linus Pauling
C) Hershey and Chase
D) Maurice Wilkins
- 27. Which technique did Watson and Crick rely upon for their discovery?
A) Mathematical modeling
B) Model building
C) Biochemical assays
D) Bioinformatics
- 28. What field of study does 'The Double Helix' primarily relate to?
A) Microbiology.
B) Molecular biology.
C) Ecology.
D) Astrophysics.
- 29. Who was notably opposed to Watson and Crick's proposal initially?
A) Max Delbrück
B) Linus Pauling
C) Erwin Chargaff
D) Maurice Wilkins
- 30. Where did Watson and Crick conduct their research?
A) Cold Spring Harbor Laboratory.
B) Johns Hopkins University.
C) Rockefeller University.
D) Cavendish Laboratory, Cambridge.
- 31. What does DNA stand for?
A) Deoxyribonucleic acid.
B) Deoxynucleotide acid.
C) Deoxyribonucleotide acid.
D) Dioxyribonucleic acid.
|