SC23.7.13b: Construct an explanation from evidence of how genetic variants may…

Genes and Traits: Heredity and Punnett Squares Grades 7–8

Why you look like your family but not exactly, how two purple-flowered pea plants can have a white-flowered one, what Gregor Mendel really counted, and what happens when a gene changes. Four no-materials lessons with printed allele cards, Punnett squares, Mendel's own data and a real gene to decode.

• What happens when a gene changes? 45–60 min

  Students decode the first words of the real human haemoglobin gene, apply five mutation cards and see which changes alter the protein. Then they stand in the corner of the room that matches each real case: harmful, neutral, helpful or it depends. They explain how a change in a gene can change a protein and a trait.

Printable practice for SC23.7.13b

These pages practise a closely related idea; the match to SC23.7.13b is partial.

• Genes and Traits: Heredity and Punnett Squares workbook included with the unit

  1 word wall, 1 English-support page, 1 practice page, 1 reading, 1 unit review, 1 unit test, with answer keys.

Need just this outcome? Build a custom pack from these pages, with its answer key, in about a minute. Custom packs come with All-access and school licences.