Practice Papers

 
 
 

Unit Test –VII

Chapter- 9

  1. Suggest the breeding method most suitable for animals that are below average in milk productivity.                                     1
  2. Write the names of two semi- dwarf and high yielding rice varieties developed in India after 1966.                                                     1
  3. Write an alternate source of protein for animal & human nutrition.1
  4. Name any 2 diseases the ‘Himgiri’ variety of wheat is resistant to. 1
  5. State the disadvantage of inbreeding among cattle. How it can be overcome?                                     2
  6. Differentiate between out breeding and out crossing.    2
  7. (a) Name any two fowls other than chicken reared in a poultry farm.

(b) Enlist 4 important components of poultry farm management.  3

  1. (a) Name the tropical sugar cane variety grown in South India. How has it helped in improving the sugar cane quality grown in North India?     3

(b) Identify ‘A’, ‘B’ and ‘C’ in the following table-

No.

Crop

Variety

Resistance to disease/Insect  Pest

1.

Chilli

Pusa Sadabhar

(A)

2.

(B)

Pusa sem 2

Jassids, Aphids & fruit borer

3.

Brassica

(C)

White rust

 

  1. (a) Name the technology that has helped the scientists to propagate on large scale the desired crops in short duration. List the steps carried out to propagate the crops by the said technique.     5

(b) How are somatic obtained?

 

Unit Test –VIII

Chapter- 10

  1. Distinguish between the roles of flocs and anaerobic sludge digesters in sewage treatments.                                     1
  2. Differentiate following as Produced by / without     1

Brandy, Wine, Whisky, Beer, Rum

  1. Name a free-living and a symbiotic bacterium that serve as bio-fertilizer. Why are they so called?                                    2
  2. List the events that reduce the Biological Oxygen Demand (BOD) of a primary effluent during sewage treatment.     2
  3. Mention the importance of Lactic acid bacteria to humans other than setting milk into curd.                                    2
  4. Name the bacterium responsible for the large holes seen in “Swiss Cheese’. What are these holes due to?                                                   2
  5. Identify a, b, c and d in the table given below:

S. No. 

Bacterium

Product

i.

ii.

iii.

iv.

 

Aspergillus niger

(b)

(c)

Acetobacter aceti

(a)

Lactic acid

Butyric acid

(d)

  1. Describe how biogas is generated from activated sludge. List the components of biogas.                                                   3
  2. Name the genus to which baculoviruses belong. Describe their role in integrated pest management programmes.   3
  3. State the medicinal value and the bioactive molecules produced by

Streptococcus, Monascus and Trichoderma                   3

locomotion and movement_5(2)locomotion and movement_6(2)

 

 

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