1. An increase in some phenomenon at a constant rate over a specified time period.
A. Geometic growth
B. Exponential
C. Arithmetic growth
D. Nonlinear
2. Which of the following plant hormones is incorrectly paired with its function?
A. cytokinin -promotes senescence
B. gibberellin -stimulates seed germination
C. abscisic acid -promotes seed and bud dormancy
D. ethylene -promotes fruit ripening
3. A mixture containing the following compounds is passed through a column in a gel filtration chromatography, which excludes all protein of MW 100,000 and higher: protein A MW = 30,000, protein B MW = 200,000, protein C MW : 90,000, protein D MW : 50,000, protein E MW: 250,000. What will be the order of elution of these proteins ?
A. Protein E, Protein B, Protein C, Protein D, Protein A
B. Protein E + Protein B, Protein C, Protein D, Protein A
C. Protein A, Protein D, Protein C, Protein B, Protein E
D. Protein E + Protein B, Protein A, Protein D, Protein C
4. Verticillaster influorescence is a feature of
A. Malvaceae
B. Liliaceae
C. Labiatae
D. Cruciferae
5. Which of the following regarding epigenetic inheritance is false?
A. It does not involve changes in DNA sequence
B. It involves functionally relevant modifications to the genome such as histone modification
C. Epigenetic changes are not preserved when cells divide
D. Epgenetic inheritance can be reset during gametogenesis
6. If you could connect and active xyiem vessel from a shoot to an active phloem sieve-tube member from a leaf using a r'micropipe," which way would the solution flow between the two?
A. The solution wouid flow from xylem to phloem.
B. The solution would flow from phloem to xylem.
C. The solution would flow back and forth from one to anotler.
D.The solution would not flow between the two.
7.If the map distance between genes A and B is 5 map units and the map distance between B and c is 15 map units, what is the map distance between A and C?
A. 5 map units
B. 10 map units
C. 20 map units
D. Either 10 map units or 20 map units depending on the order of genes
8.If a cell with a solute potential of -0.2 MPa and a pressure potential of 0.4 MPa is placed in a chamber filled with pure water that is pressurized with 0.5 MP4 what will happen?
A. Water will flow out of the cell.
B. Water will flow into the cell.
C The cell will be crushed.
D. The cell will explode.
9, The firngus that causes southern com leaf blight is known to produce this host specific toxin.
A. HT toxin
B. HV toxin
C. HC toxin
D. HS toxin
10. Primitive bryophytes are called
A. Club mosses
B. Horse tails
C. Liver worts
D. Ferns
11. The bioluminescent dinoflagellates are
A. Noctiluca and Gonyaulax
B. Glmnodinium and Cerastium
C. Dinobryon arrd Distephanus
D. Pinnularta nd Acetabularia
12. Which one of the following is living but non-nucleated:
A. Sieve tube
B. Companion cells
C. Phloem fibre
D. Phloem parenchyma
13. uranyl acetate is used as a negative strain in this technique
A. Confocal microscopy
B. Epifluorescence
C Electron microscopy
D. Compound microscope
14. Protoplasts can be made from the plant cells using these enzyme combinations
A. Cellulase and Pectinase
B. Replicase and Ligase
C. Protease and Chitinase
D. DNAse and RNase
15. A large ecosytem that has distinct climate, geology, and organisms; e.g., desert,tunfta, grassland, savilm4 woodland, coniferous forest, temperate deciduous forest, and tropical rain forest.
A. Ecotone
B. Microcosm
C. Global ecosystem
D. Biome
16. Roger Beachy is known for this landmark discovery in plant pathology.
A. Transgenic plants resistant to insects
B. Transgenic plants resistant to fungal pathogens
C. Transgenic plants resistant to bacterial puthogeos
D. ltansgenic plants resistant to plant viruses
17. During calvin cycle, the last enzyme involved in RuBp regeneration is
A. phosphoribulokinase
B. Rubisco
(. phosphopentoepimerase
D. phosphopentoseisomerase
18..A local movement that began in India in the early l9g0s and is opposed to govemmental deforestation programs.
A. Green movement
B. Afforestation
C. Heat Island
D. Chipko movement
19. Salicylic acid is known to induce systemic aequirecl resistance SAR in plants,Identi$ one among the following, which is also known to induce SAR.
A. Succinic acid
B. Giuconic acid
C. 2,6-dichloroisonicotinic acid
D. Chorisrnic acid
20, A major route for biosynthesis of secondary products in plants is
A. C+ pathway
B. Shikimate pathway
C. CAM pathway
D. GS-GOGAT system
21. Number of 'High Energy P' bonds are required to translat e a279 aa protein
A.279
B.558
c.837
D. 1116
22. One of the following proteins is positioned as the tip of the pilus formed between the Agrobacterium and plant cell
A. VirBl
B. VirBl l
C. VirB5
D. VirA
23. A reaction medium of 500 ml containing2} mM Tris-HCl buffer pH 7.5, 0.5 mM MgCl2 and 0.05% NaN3 has to be prepared using the stock solutions of I M Tris HCI pH 7.5; 100 mM MgCl2 and 5% NaN3 solution. The volumes of stocks should be mixed as
A. 10 ml of Tris-HCl, 5 ml of MgCD and 2.5 ml of NaN3 in482.5 ml of ddH2O
B. 50 ml of Tris-HCl, 5 ml of MgCl2 and2.5 ml of Na]'{3 in442.5 ml of ddH2O
C. 10 ml of Tris-HCl, 2.5 ml of MgCl2 and 5 ml ofNaN3 in 482.5 ml of ddH2O
D. 50 ml of Tris-HCI,2.5 ml of MgCl2 and 5 ml of NaN3 in442.5 ml of ddH2O
24. Which of the following is a marker gene in chloroplast transformation studies
A. Phosphomannose isomerase
B. Xyiose isomerase
C. Chloramphenicol acetyl transferase
D. Aminoglycoside adenyl transferase
25. Primary amino sequence of a protein from five plant species is given to you.
Which of the following tools would you use to know the homology between the
sequences?
A. BLAST
B. TargetP
C. CLUSTALW
D. Primer Express