IARI phd Entrance 2004 Question Paper with Answer Keys

IARI phd Entrance 2004 Question Paper with Answer Keys.

IARI phd Entrance 2004 Question Paper with Answer Keys Free Download General Agriculture (Paper I) 2004 Indian Agricultural Research Institute (IARI) Exam 2004 Question Paper and answers

1. Prominent foul smell of Karnal bunt is due to

(A) Triethyl amine (B) Trimethyl amine

(C) Dimethyl amine (D) None

2. The most important process in chemical weathering

(A) Hydration (B) Hydrolysis

(C) Oxidation (D) Carbonation

3. Vector of leaf curl disease of cotton and tobacco

(A) Myzus persicae (B) Aphis gossypi

(C) Bemesia tabaci (D) Thrips tabaci

4. Vector of tomato spotted wilt

(A) Myzys persicae (B) Aphis gossypi

(C) Bemesia tabaci (D) Thrip tabaci

5. The level to which given pest population should be reduced to achieve the point where marginal revenue just exceeds marginal cost

(A) EIL (B) ETL

(C) GEP (D) DB

6. Reagent used for the extraction of phosphorus in alkaline soils

(A) Bray No.1 (B) Bray No.2

(C) Olesensreagent (D) Both A & B

7. Pusa delicious is ……………. Type of papaya

(A) Gynecious (B) Gynodiecious

(C) Both (D) None

8. The first insect resistant variety ‘under hill’ is related to

(A) Apple (B) Rice

(C) Wheat (D) Peach

9. Odomos the mosquito repellent contains

(A) Pyrithrin (B) Camphor oil

(C) Citronella Oil (D) Neem oil

10. Based on Severity of damage Wheat pests which have been ranked in the order

(A) Brown rust >Loss smut>Termites>Karnal bunt

(B) Termites>Brown rust>Karnal bunt>Loos smut

(C) Brown rust>termites>karnal bunt>Loos smut

(D) Karnal bunt>Loos smut>Termites>Brown rust

11. India has monopoly in the production of

(A) Mulberry silk (B) Tassar silk

(C) Eri Silk (D) Muga silk

12. The pest which is a result feature and confined to a particular locality

(A) Epidemic (B) Endamic

(C) Seasonal (D) Sporadic

13. Bundle sheath chloroplast

(A) Lack stroma (B) Lack granna

(C) Both A&B (D) Both present

14. High auxin and low cytokinin favours……..

(A) Root (B) Shoot

(C) Bud (D) Flower

15. Presursor of ethylene

(A) Tryptophan (B) Ethane

(C) Ethionine (D) Methionine

16. Kraz anatomy is seen in

(A) Rice (B) Amaranthus

(C) Pineapple (D) B & C

17. An international pest?

(A) Helicoverpa (B) Spodoptera

(C) Schistocera (D) Pectinophora

18. Carbohydrate factory of cell is

(A) Golgi body (B) Chloroplast

(C) Cytosol (D) Peroxisome

19. In photorespiration NH3 evolution take place at

(A) Mitochondria (B) Chloroplast

(C) Cytosol (D) Nucleolus

20. Organelles involved in photorespiration

(A) Chloroplast, Mitochondria, Peroxisome

(B) Chloroplast, Mitochondria, Glyoxysome

(C) Mitochondria, Peroxisome, Glyoxysome

(D) Mitochondria and Chloroplast only

21. Which one is a total root parasite

(A) Custuta (B) Loranthus

(C) Santalum (D) Rafflesia

22. Particle size of colloids is (in microns)

(A) < 2 (B) 1-100

(C) >100 (D) None

23. Term genetics was coined by

(A) Johnson (B) Batson

(C) Punnet (D) Morgan

24. Components of prokaryotic ribosome are

(A) 50s & 20s (B) 40s & 30s

(C) 60s & 40s (D) 50s & 30s

25. Plasma membrane is

(A) Permeable (B) Non permeable

(C) Selectively permeable (D) Partially permeable

26. ABO blood group is an example of

(A) Multiple alleles (B) Linkage

(C) Pleotropy (D) Over dominance

27. ………………… is a sex limited character

(A) Colour blindness (B) Hemophelia

(C) Baldness (D) None

28. The most common form of DNA is

(A) A DNA (B) B DNA

(C) C DNA (D) Z DNA

29. Replication of DNA is

(A) Semi conservative (B) Dispersive

(C) Continous (D) Conservative

30. ………… is the first cotton hybrid

(A) Varalakshmai (B) H4

(C) Varuna (D) Jayalakshmi

Answer Keys

1. B 2. B 3. C 4. D 5. B 6. C 7. A 8. C 9. A 10. A 11. D 12. B 13. B 14. A 15. D 16. B 17. A 18. B 19. A 20. A 21. D 22. B 23. B 24. D 25. C 26. A 27. C 28. B 29. A 30. B

Similar Pages…

See Also……