Comprehension and additional task exercises pages 38 and 39 from Next Page Science KS3 Complete. Accompanying PowerPoint and word searches available for free from the website.
This exercise covers:
• Humans having 46 chromosomes (image of cell, nucleus, chromosome, DNA and gene)
• What chromosomes, genes and DNA are
• Punnett squares for the sex of offspring and dominant recessive characteristics and an exercise using Punnett squares
• What a species is
• Who worked it all out: Rosalind Franklin, Maurice Wilkins, James Watson and Francis Crick
• Amazing WHAT? facts
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