1. Arrange the following in particular sequence:
Macromolecules, individual, tissue, biome, population, cell
a) Macromolecules, individual, tissue, biome, population, cell
b) population, cell, macromolecules, individual, tissue, biome
c) macromolecules, cell, tissue, individual, population, biome
d) cell, tissue, macromolecules, individual, biome, population
2. The basic technique of modern biotechnology is/are
a) Chemical engineering
b) Genetic engineering
c) Both a and b
d) None of these
3. Best way to increase food production without using fertilizers and pesticides is
a) Green revolution
b) Aeroponics
c) Hydroponics
d) Genetically engineered technique
4. The term'smack' refers to a drug produced from
a) Leaves of Cannabis sativa
b) Flowers of Datura
c) Fruits of Erythroxylum coca
d) Latex of Papaver somniferum
5. Which of the following is not an advantage of tissue culture?
a) A large number of plants
b) Healthy plants can be multiplied
c) Seedless plants can be multiplied
d) It is even useful in cases where sexual reproduction is possible
6. Identify the correct statement from the following:
a) mRNA is polycistronic in prokaryotes and monocistronic in eukaryotes
b) mRNA is polycistronic in eukaryotes and monocistronic in prokaryotes
c) mRNA is polycistronic in both eukaryotes and prokaryotes
d) mRNA is monocistronic in both eukaryotes and prokaryotes
7. Which of the following processes are included under biotechnology?
a) invitro fertilization leading to a test tube baby
b) synthesising a gene/ correcting a defective gene
c) developing a DNA vaccine
d) All of the above
8. During spermatogenesis, meiosis I converts
a) Spermatogonia into primary spermatocytes
b) primary spermatocytes into secondary spermatocytes
c) Spermatid into spermatozoa
d) Secondary spermatocytes into spermatids
9. When both the father and mother have blood group AB, they can have children of
a) Blood group AB only
b) blood groups A and B
c) blood groups A, B and AB
d) blood groups A, B, AB and O
10. HIV is the virus that causes AIDS. which of the following is not a method of HIV transmission?
a) sharing the infected needles
b)transfusion of contaminated blood
c) sexual contacts with infected persons
d) shaking hands with infected persons
Answers:
1. c) macromolecules, cell, tissue, individual, population, biome
2. c) Both a and b
3. d) Genetically engineered technique
4. d) Latex of Papaver somniferum
5. d) It is even useful in cases where sexual reproduction is possible
6. a) mRNA is polycistronic in prokaryotes and monocistronic in eukaryotes
7. d) All of the above
8. b) primary spermatocytes into secondary spermatocytes
9. c) blood groups A, B and AB
10.d) shaking hands with infected persons