Hands-on Activity during a Magnificent Biology Session with Grade 9 Learners... Karyotype is a picture of chromosomes which are arranged in decreasing order of size, according to the shape, position of the centromere, distribution of the color bands. To understand this, nothing will be better than performing karyotyping in the classroom. My Grade 9 learners enjoyed their Biology lesson by having this hands-on activity, make their own karyotypes, identify the gender and the number of chromosomes in their karyotypes and specify if there is abnormality or not... At the end of the session, they felt like Biology is a very interesting subject. They felt as if they were dealing with chromosomes which are very hard to imagine... This is real involvement... I am sure they will never forget this lesson. Based on my experience, I always recommend teachers to engage learners in hands-on activities and they will find the difference, since learners will remember what they have ha...
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