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Agriculture · Karatasi 2 · 2003

10 maswali

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Mtihani wa saa 3 wa muda · husahihishwa kiotomatiki · huhesabiwa kwenye nafasiMazoezi ya saa 3 · husahihishwa moja kwa moja · huhesabika kwenye nafasiMazoezi ya saa 3 · husahihishwa moja kwa moja · huhesabika kwenye nafasi

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Maswali (10)

Sehemu A

1. 20 alamas

Differentiate between the following terms in plant breeding: (a) Mass selection and pure line selection (b) Progeny testing and performance testing (c) Gene pool and germplasm (d) Hybrid vigour and inbreeding depression

  1. Mass selection and pure line selection (5 alama)
  2. Progeny testing and performance testing (5 alama)
  3. Gene pool and germplasm (5 alama)
  4. Hybrid vigour and inbreeding depression (5 alama)

Boresha ili kuona majibu ya mfano.

2. 20 alamas

Briefly explain the concept of crop rotation and its significance in controlling soil-borne diseases.

  1. Explain the concept of crop rotation and its significance in controlling soil-borne diseases. (20 alama)

Boresha ili kuona majibu ya mfano.

3. 20 alamas

Describe the life cycle of a major insect pest of a staple crop in your country, and outline two methods to control it.

  1. Describe the life cycle of a major insect pest of a staple crop in your country, and outline two methods to control it. (20 alama)

Boresha ili kuona majibu ya mfano.

4. 20 alamas

Explain what is meant by biological control of weeds as used in crop protection. State three potential benefits and three limitations of this method.

  1. Explain what is meant by biological control of weeds as used in crop protection. State three potential benefits and three limitations of this method. (20 alama)

Boresha ili kuona majibu ya mfano.

5. 20 alamas

State four reasons why fungi are considered the most important group of plant pathogens, giving two examples of diseases they cause.

  1. State four reasons why fungi are considered the most important group of plant pathogens, giving two examples of diseases they cause. (20 alama)

Boresha ili kuona majibu ya mfano.

Sehemu B

6. 20 alamas

Explain the meaning of the following terms as used in animal health: (a) Epidemiology (b) Zoonotic disease (c) Etiology (d) Quarantine

  1. Epidemiology (5 alama)
  2. Zoonotic disease (5 alama)
  3. Etiology (5 alama)
  4. Quarantine (5 alama)

Boresha ili kuona majibu ya mfano.

7. 20 alamas

Discuss the importance of a balanced ration in livestock production.

  1. Discuss the importance of a balanced ration in livestock production. (20 alama)

Boresha ili kuona majibu ya mfano.

8. 20 alamas

Briefly explain five factors that predispose livestock to diseases.

  1. Briefly explain five factors that predispose livestock to diseases. (20 alama)

Boresha ili kuona majibu ya mfano.

9. 20 alamas

Outline the main events that occur in the different sections of the hen's reproductive tract during egg formation.

  1. Outline the main events that occur in the different sections of the hen's reproductive tract during egg formation. (20 alama)

Boresha ili kuona majibu ya mfano.

10. 20 alamas

Differentiate between artificial selection and natural selection as applied in animal breeding.

  1. Differentiate between artificial selection and natural selection as applied in animal breeding. (20 alama)

Boresha ili kuona majibu ya mfano.

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