SPSC Lecturer Botany Past Paper 08-02-2011

1- Botanic Gardens have collection of living plants for the purpose of:

A. Display & Education 
B. Research & Conservation
C. Both of them  
D. None of these 

Answer : C. Both of them

2- A group of individual having the same chromosome number is called:

A. Karygamy
B. Karyolysis
C. Karyotype
D. None of these 

Answer : C. Karyotype

3- Royal botanic garden, Kew(k) is present in:

A. England
B. Russia
C. Australia
D. New Zealand 

Answer : A. England

4- A strophiole is usually present in the seeds of the members of:

A. Asteraceae
B. Fabaceae
C. Malvaceae
D. None of these 

Answer : B. Fabaceae

5- Megaspore mother cell undergoes division which is a:

A. Meiotic
B. Mitotic division 
C. Nuclear division    
D. None of these 

Answer : A. Meiotic

6- Which one is odd:

A. Asteraceae
B. Capitulum head 
C. Poaceae
D. None of these 

Answer : C. Poaceae

7- Meiosis Prophase 1 has:

A. Two subdivisions    
B. Three subdivisions 
C. Four subdivisions
D. Five subdivisions

Answer : D. Five subdivisions

8- DNA molecule does not contain:

A. Adenine
B. Uracil
C. Thymine
D. Cytosine

Answer : B. Uracil

9- The functional unit of gene responsible for the synthesis of one polypeptide is called:

A. Recon
B. Muton
C. Cistron
D. Gene

Answer : C. Cistron

10- Colchicine inhibits which stage of mitosis:

A. Prophase
B. Telophase
C. Metaphase
D. Spindle formation

Answer : D. Spindle formation

11- Purple colouration on plant parts in tomato is due to the deficiency of which element?

A. Nitrogen
B. Phosphorus
C. Potash
D. Calcium

Answer : B. Phosphorus

12- Ants are social insects because:

A. they live in colonies
B. they live in forests
C. they have a language
D. they share food  

Answer : A. they live in colonies

13- The plants produced by genetic engineering are called:

A. Recombinants
B. Transgenic plants
C. Genetic clones 
D. None of these  

Answer : B. Transgenic plants

14- Canal irrigation has increased the:

A. water logging 
B. soil salinity 
C. both of these
D. none of these    

Answer : C. both of these

15- Wildlife management is necessary for protection of:

A. Forest soils 
B. Forest animals 
C. Both A and B
D. None of these    

Answer : C. Both A and B

16- In case of asexual reproduction, which type of variations do not exist in the progeny:

A. hereditary
B. environmental
C. Both A and B
D. None of these    

Answer : A. hereditary

17- Angiospermic seed is formed from the:

A. Ovary 
B. Ovule
C. Embryo sac 
D. Carpel

Answer : B. Ovule

18- Most of the present day atmospheric oxygen is thought to have been formed by the activity of:

A. Blue green algae
B. Red algae 
C. Green algae 
D. Cryophytes

Answer : A. Blue green algae

19- Which is the fossil genus of Pteridophilic plants:

A. Lepidodendron
B. Psilophyton
C. Rhymia
D. All of these

Answer : D. All of these

20- Capacity of a pathogen to produce disease in plant depends upon:

A. Host susceptibility 
B. Environmental conditions
C. Both of these
D. None of these  

Answer : C. Both of these

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