Q1
mcq
1 mark
Importing better varieties and plants from outside and acclimatising them to local environment is called :
- A. Selection
- B. Cloning
- C. Introduction
- D. Heterosis
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Q2
mcq
1 mark
A plant called ‘X’ possesses small flower with reduced perianth and versatile anther. The probable agent for pollination would be :
- A. butterfly
- B. water
- C. beetles
- D. air
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Q3
mcq
1 mark
The bacteria, which possess Ti plasmid is :
- A. Arthrobacter luteus
- B. E. coli
- C. Bacillus amyloliquefaciens
- D. Agrobacterium tumifaciens
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Q4
mcq
1 mark
Tamarindus indica is indigenous to :
- A. South America, Greece
- B. Tropical African region
- C. India alone
- D. South India, Sri Lanka
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Q5
mcq
1 mark
Which one of the following palindromic base sequence in DNA can be easily cut at about the middle by some particular restriction enzymes ?
- A. 5’ GAATTC 3’ 3’ CTTAAG 5’
- B. 5’ CGTTCG 3’ 3’ ATCGTA 5’
- C. 5’ CACGTA 3’ 3’ CTCAGT 5’
- D. 5’ GATATG 3’ 3’ CTACTA 5’
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Q6
mcq
1 mark
The only cereal that has originated and domesticated from the New World.
- A. Triticum duram
- B. Oryza sativa
- C. Zea mays
- D. Triticum aestivum
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Q7
mcq
1 mark
Virus free plants are developed from :
- A. Protoplast culture
- B. Organ culture
- C. Cell Suspension culture
- D. Meristem culture
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Q8
mcq
1 mark
“Gametes are never hybrid”. This statement is associated with the :
- A. Law of segregation
- B. Law of dominance
- C. Law of random fertilization
- D. Law of independent assortment
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Q9
mcq
1 mark
Solar energy used by green plants for photosynthesis is only :
- A. 3 - 10%
- B. 2 - 8%
- C. 2 - 9%
- D. 2 - 10%
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Q10
mcq
1 mark
Which one of the following soil water is available for plants ?
- A. Capillary Water
- B. Gravitational Water
- C. Hygroscopic Water
- D. Chemically bound Water
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Q11
mcq
1 mark
Match List - I with List - II :
- A. (1)-(ii), (2)-(iii), (3)-(i), (4)-(iv)
- B. (1)-(i), (2)-(iii), (3)-(ii), (4)-(iv)
- C. (1)-(iii), (2)-(ii), (3)-(i), (4)-(iv)
- D. (1)-(ii), (2)-(iii), (3)-(iv), (4)-(i)
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Q11
mcq
Match List - I with List - II : List - I List - II (1)A pair of chromosomes extra with diploid (i)monosomy (2)One chromosome extra to the diploid (ii)tetrasomy (3)One chromosome loses from diploid (iii)trisomy (4)Two individual chromosomes loses from diploid (iv)double monosomy
- A. (1)-(ii), (2)-(iii), (3)-(i), (4)-(iv)
- B. (1)-(i), (2)-(iii), (3)-(ii), (4)-(iv)
- C. (1)-(iii), (2)-(ii), (3)-(i), (4)-(iv)
- D. (1)-(ii), (2)-(iii), (3)-(iv), (4)-(i)
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Q12
mcq
e for plants ?
- A. Capillary Water
- B. Gravitational Water
- C. Hygroscopic Water
- D. Chemically bound Water
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Q12
mcq
Identify the correctly matched pair :
- A. Rhizome - Musa
- B. Tuber - Allium cepa
- C. Stolon - Zingiber
- D. Sucker - Pistia
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Q14
mcq
The invasive species introduced in India from South America :
- A. Parthenium
- B. Lantana
- C. Kappaphycus
- D. Prosopis
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Q15
mcq
Which one of the following is an example of polygenic inheritance ?
- A. Pod shape in Garden Pea
- B. Flower colour in Mirabilis jalapa
- C. Skin colour in humans
- D. Production of male honey bee
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Q24
short answer
Draw and label the structure of embryo sac.
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Q25
short answer
3 marks
Differentiate grafting and layering.
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Q26
short answer
3 marks
Differentiate continuous variation with discontinuous variation.
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Q27
short answer
3 marks
Write the differences between linkage and Crossing over.
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Q28
short answer
3 marks
Mention any three applications of Bio-technology.
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Q29
short answer
3 marks
Write the various steps involved in cell suspension culture.
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Q30
short answer
3 marks
What is Albedo effect ? Write its effects.
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Q31
short answer
3 marks
Productivity of profundal zone will be low. Why ?
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Q32
short answer
3 marks
What is Carbon Capture and Storage (CCS) ?
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Q33
short answer
3 marks
Draw the chart of Relative Contribution of green house gases.
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Q36
long answer
5 marks
Draw and label the structure of T.S. of mature anther.
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Q37
long answer
5 marks
Generally human activities are against the ecosystem. As a student how will you help to protect ecosystem.
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Q38
long answer
5 marks
Explain Incomplete Dominance with an example.
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Q39
long answer
5 marks
Tabulate Secondary metabolites and its plant resources with uses.
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Q40
long answer
5 marks
How sex is determined in monoecious plants ? Write their genes involved in it.
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Q41
long answer
5 marks
Write the benefits and risks of Genetically Modified Foods.
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Q42
long answer
5 marks
List out the benefits of agro forestry.
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Q43
long answer
5 marks
Suggest a solution to water crisis and explain its advantages.
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Q44
long answer
5 marks
Explain the various types of seed dormancy.
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Q45
long answer
What are the different types of hybridization ? Explain.
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Q46
long answer
How will you prepare an organic pesticide for your home garden with the vegetables available from your kitchen ?
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