If every human on earth looked exactly the same, the world would be a boring place. Thank goodness for genes! Pupils explore the difference between haploid and diploid cells by learning how two parents without red hair can produce a child with red hair, exploring the difference between chromosome numbers of haploid and diploid cells, and seeing how haploid and diploid cells form. 

Concepts

cells, genes, gametes, fertilization, meiosis

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Additional Tags

science

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Instructional Ideas

• Place learners in pairs, stopping the video to ask them pre-scripted questions

Classroom Considerations

• Classroom should have a computer, projection system, and access to the Internet 
• Video assumes learners know the difference between gametes and somatic cells 
• The lesson is 15th in a series of 37

Pros

• Simple visuals show the difference between haploid and diploid
• Great example using red hair on chromosome #16
• Leaves learners with a great question about bacteria and their ploidy

Cons

• None

Common Core

RST.9-10.4