Vidaara.orgClass 12 · Mathematics
CodeVID-M12-WS
Biotechnology and its Applications — Practice Worksheet
Name: ____________________
Roll No.: __________
Date: ____________
General Instructions
- All questions are compulsory.
- Choose the correct option (A, B, C or D) for each question.
- The answer key is at the end — try the paper first!
Section A — Multiple Choice (1 mark each)
16 × 1 = 16 marks
1.
Plants whose genes are altered by genetic engineering are called:
- A.GM (transgenic) crops
- B.Fossils
- C.Vectors
- D.Antibodies
2.
Bt cotton is resistant to insect pests due to a gene from:
- A.Bacillus thuringiensis
- B.Yeast
- C.Rhizobium
- D.A virus
3.
The Bt protein in Bt cotton is toxic to:
- A.Certain insect pests
- B.Humans
- C.All animals
- D.The plant itself
4.
Golden Rice is engineered to be rich in:
- A.Vitamin A
- B.Salt
- C.Sugar
- D.Fat
5.
Growing whole plants from small pieces of tissue in the lab is:
- A.Tissue culture
- B.Fermentation
- C.Vaccination
- D.Digestion
6.
Human insulin made by bacteria is called:
- A.Humulin
- B.Penicillin
- C.Interferon
- D.Bt protein
7.
Animal insulin was sometimes a problem because it could cause:
- A.Allergies
- B.More energy
- C.Better vision
- D.No effect
8.
A vaccine made by genetic engineering containing only part of the germ is a:
- A.Recombinant vaccine
- B.Live full germ
- C.Carcinogen
- D.Biofertiliser
9.
Treating a genetic disorder by inserting a correct gene is:
- A.Gene therapy
- B.Cloning
- C.Fermentation
- D.Vaccination
10.
Detecting a disease very early by its genes uses techniques like:
- A.PCR and DNA probes
- B.Boiling
- C.Freezing
- D.Grinding
11.
Concern that GMOs may harm health or environment is:
- A.Biosafety
- B.Biopiracy
- C.Biofertiliser
- D.Bioreactor
12.
GM products in India are approved by the:
- A.GEAC
- B.ISRO
- C.RBI
- D.UGC
13.
Using a country's bioresources/knowledge without permission is:
- A.Biopiracy
- B.Biosafety
- C.Cloning
- D.Tissue culture
14.
Attempts to patent which of these were challenged as biopiracy in India?
- A.Neem, turmeric, basmati
- B.Steel, iron, coal
- C.Plastic, glass
- D.Water, air
15.
India protects its biological resources through the:
- A.Biological Diversity Act
- B.Traffic rules
- C.Income Tax Act
- D.Postal Act
16.
Animals that have had a foreign gene introduced into them are called:
- A.Transgenic animals
- B.Fossils
- C.Vectors
- D.Hybrids only
Section B — Challenge / Olympiad (2 marks each)
7 × 2 = 14 marks
17.
Bt cotton reduces the use of chemical insecticides because the plant itself:
- A.Produces a protein that kills target pests
- B.Attracts more pests
- C.Stops growing
- D.Makes pesticide spray
18.
Producing insulin in bacteria solved a key supply problem because bacteria can:
- A.Be grown in huge numbers to make plenty of insulin
- B.Make only a drop
- C.Not make protein
- D.Replace the pancreas
19.
Golden Rice is aimed especially at populations suffering from:
- A.Vitamin-A deficiency
- B.Excess vitamin A
- C.Too much protein
- D.Iron overload
20.
Regulatory bodies like the GEAC are needed before releasing a GM crop mainly to:
- A.Check it is safe for health and the environment
- B.Increase its price
- C.Ban all farming
- D.Speed up sales without testing
21.
Challenging the turmeric and neem patents protected India from biopiracy by asserting that the knowledge was:
- A.Already traditional and not a new invention
- B.Owned by one company
- C.Useless
- D.Newly discovered abroad
22.
A recombinant hepatitis-B vaccine cannot give a person hepatitis because it contains:
- A.Only a harmless part of the virus, not the whole virus
- B.The full active virus
- C.Bacteria
- D.No antigen at all
23.
Stem cells are valuable in medicine mainly because they can:
- A.Develop into many different cell types to repair tissues
- B.Only divide once
- C.Never divide
- D.Make antibiotics
Answer Key
Section A — Multiple Choice (1 mark each)
- (A) GM (transgenic) crops
- (A) Bacillus thuringiensis
- (A) Certain insect pests
- (A) Vitamin A
- (A) Tissue culture
- (A) Humulin
- (A) Allergies
- (A) Recombinant vaccine
- (A) Gene therapy
- (A) PCR and DNA probes
- (A) Biosafety
- (A) GEAC
- (A) Biopiracy
- (A) Neem, turmeric, basmati
- (A) Biological Diversity Act
- (A) Transgenic animals
Section B — Challenge / Olympiad (2 marks each)
- (A) Produces a protein that kills target pests
- (A) Be grown in huge numbers to make plenty of insulin
- (A) Vitamin-A deficiency
- (A) Check it is safe for health and the environment
- (A) Already traditional and not a new invention
- (A) Only a harmless part of the virus, not the whole virus
- (A) Develop into many different cell types to repair tissues
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