Biotechnology Questions and Answers

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Q1
DNA fingerprinting is based on which property of DNA?
  • A a) Radioactivity
  • B b) Polymerization
  • C c) Sequence variation
  • D d) Enzyme activity
Answer: Option C
Explanation: DNA fingerprinting relies on sequence variations that are unique to each individual.
Q2
The enzyme used to cut DNA at specific sequences is called:
  • A a) Polymerase
  • B b) Ligase
  • C c) Restriction enzyme
  • D d) Transcriptase
Answer: Option C
Explanation: Restriction enzymes recognize and cut DNA at specific sequences.
Q3
The first genetically modified crop was:
  • A a) Potato
  • B b) Tomato
  • C c) Tobacco
  • D d) Cotton
Answer: Option C
Explanation: Tobacco was the first plant to be genetically engineered for insect resistance.
Q4
The process of forming multiple copies of DNA is called:
  • A a) PCR
  • B b) Translation
  • C c) Replication
  • D d) Transcription
Answer: Option A
Explanation: PCR (Polymerase Chain Reaction) is a technique used to amplify DNA sequences.
Q5
Plasmids are mainly found in:
  • A a) Virus
  • B b) Fungi
  • C c) Bacteria
  • D d) Algae
Answer: Option C
Explanation: Plasmids are small, circular DNA molecules commonly found in bacteria.
Q6
The full form of DNA is:
  • A a) Deoxyribonucleic Acid
  • B b) Deoxyribose Nucleic Acid
  • C c) Dioxygen Ribonucleic Acid
  • D d) Deoxyribonitric Acid
Answer: Option A
Explanation: DNA stands for Deoxyribonucleic Acid.
Q7
The field that combines biology with computer science is called:
  • A a) Biophysics
  • B b) Biomechanics
  • C c) Bioinformatics
  • D d) Biostatistics
Answer: Option C
Explanation: Bioinformatics involves the use of computational tools to analyze biological data.
Q8
Which type of organism is often used in recombinant DNA experiments?
  • A a) Virus
  • B b) E. coli
  • C c) Amoeba
  • D d) Yeast
Answer: Option B
Explanation: E. coli is commonly used due to its well-understood genetics and ease of manipulation.
Q9
The Human Genome Project was completed in:
  • A a) 2000
  • B b) 2001
  • C c) 2003
  • D d) 2005
Answer: Option C
Explanation: The Human Genome Project was declared complete in 2003.
Q10
The protein responsible for blood clotting is:
  • A a) Hemoglobin
  • B b) Fibrin
  • C c) Albumin
  • D d) Collagen
Answer: Option B
Explanation: Fibrin forms a mesh that traps blood cells and platelets to form a clot.
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