ZIMSEC A-Level Biology
8.5.2Monohybrid and Dihybrid Crosses
Monohybrid and Dihybrid Crosses in ZIMSEC A-Level Biology: what the syllabus expects you to know, the learning objectives and how to practise.
Subtopic82 practice questions4 lessons
Learning objectives
What the syllabus expects you to be able to do.
- 8.5.2.1Use genetic diagrams to solve problems involving monohybrid and dihybrid crosses, including codominance, sex linkage, multiple alleles and test crosses.
- 8.5.2.2Use the chi-squared test to decide whether the difference between observed and expected results is significant.
Lessons
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Dihybrid inheritance
40 min
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Monohybrid inheritance and genetic diagrams
40 min
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Sex determination and sex linkage
35 min
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The chi-squared test in genetics
40 min
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Sample question
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