General Science quiz Set 1

General Science quiz Set 1

General Science Quiz Questions and Answers for Competitive Exam.

Online Gk test

1. Silviculture is the branch of botany in which we study about ?

Answer is (B) Development of forest

2. Study of pollen grain is called-?

Answer is (D) Palynology studies pollen and spores produced by plants.
Pomology is the science of fruit cultivation.
Paleobotany - It is the branch of botany that deals with the study of plant fossils.
Mycology - It is the study of fungi.

3. Study of internal structure of plant ?

Answer is (B) Anatomy

4. Estimation of age of woody plant by counting annual ring is ?

Answer is (B) Dendrochronology is the scientific method of dating the age of trees by the number of rings that they have grown.
Demography is the study of human populations.
Dendrology is the branch of botany dealing with trees and shrubs.


5. Study of growing plant without soil in water containing nutrient is ?

Answer is (B) Hydroponics

6.In Exo-biology we study about ?

Answer is (D) Life found in space and on other setallite.

7. Xenobiotics which are inherently resistant to microbial attack are called as

Answer is (C) The compounds that resist biodegradation and thereby persist in the environment are called recalcitrant.

8.Curd is sour due to presence of ?

Answer is (B) Lactic Acid

9. EBOL is a -

Answer is (A) Virus

10. Virus that infect bacteria are called ?

Answer is (A) Bacteriophages

11. Desease caused by HIV ?

Answer is (C) Acquired immune deficiency syndrome

12. The biggest single-celled organism is ?

Answer is (B) Acetabularia, also called mermaid's wine glass, also called umbrella algae. Acetabularia acetabulum is a species of green alga in the family Polyphysaceae.

13. Agar – Agar is obtained from ?

Answer is (B) Algae

14. Red rot of sugarcane is caused by

Answer is (A) Red rot of sugarcane caused by the fungus Colletotrichum falcatum

Red rot and smut disease of sugarcane 

15. Aflatoxins are produced by

Answer is (C) Aflatoxins are a family of toxins produced by certain fungi that are found on agricultural crops such as maize (corn), peanuts, cottonseed, and tree nuts. The main fungi that produce aflatoxins are Aspergillus flavus and Aspergillus parasiticus, which are abundant in warm and humid regions of the world.

16. Statements: 1. In Gymnosperms, seeds enclosing in side fruits. 2. Dicots and monocots are included in Angiospersm.

Answer is (D) Statement 1 is incorrect, but Statement 2 is correct.

17. Which part of the cinchona yields a drug ?

Answer is (C) Bark
Cinchona - belonging to family Rubiaceae. The bark of tree is source of a variety of alkaloids, the most familiar of which is quinine, an antipyretic agent especially useful in treating malaria. At the second world war cinchona had great importance in the world trade. At that time 95% of world quinine supply came from Java. Annual world production of quinine and its alkaloids is estimated about 850 tones. India produces only 15-20 tones annually.


18.Fiber of cotton is obtain from ?

Answer is (C) Fruit
Cotton is obtained from fruits of cotton plant and jute is obtained from stem of the jute plant.

19. An enzyme produced by HIV that allows the integration of HIV DNA into the host cell's DNA is ?

Answer is (A) Integrase

20. Dr. Norman E. Borlaug belonged to ?

Answer is (C) America

 Dr. Norman E. Borlaug
 Dr. Norman E. Borlaug

21. Eye of potato are

Answer is (B) Axillary buds
Potato is a stem because it has many nodes called eyes with spaces between eyes known as internodes.

22. Ginger is ?

Answer is (B) Modified stem

Ginger Rhizome 

23. Cactus is referred to as ?

Answer is (C) Xerophyte
Cactus is a xerophyte as it specializes in surviving in hot & dry environments.


24. Agar - agar is prepared from ?

Answer is (A) Alageae

25. The inflorescence of wheat is ?

Answer is (C) Spike


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