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ZIMSEC O-Level Agriculture

5.4.8Animal improvement

Animal improvement in ZIMSEC O-Level Agriculture: what the syllabus expects you to know, the learning objectives and how to practise.
Subtopic61 practice questions3 lessons

Learning objectives

What the syllabus expects you to be able to do.

  1. 5.4.8.1Form 3: explain the stages of mitosis and meiosis and outline the effects of the environment on genes.
  2. 5.4.8.2Form 4: explain the importance of breeding and the effects of the environment on breeding, distinguish cross-breeding from inbreeding, select animals for breeding and solve test-cross problems with genetic diagrams.

Lessons

  • Cell division: mitosis and meiosis

    35 min

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  • Livestock breeding and artificial insemination

    40 min

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  • Monohybrid inheritance and genetic crosses

    40 min

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Sample question

A sample question on this topic. Answer it, check it, then read the worked answer.

Animal improvement: sample question

1 mark

In which stage of mitosis do the chromosomes line up across the equator of the spindle?

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