* Standard 10

7Sb.6: Use Punnett squares to predict inherited monohybrid traits.

3-    Lesson on Punnett Square Possible Creations

Group Activity:

1) The teacher will put out white boards in difference areas of the room.

2) The students will go in groups of 2 to the different stations and there read a set of directions giving them 2 sets of alleles-genotypes

3) They must then figure out the genotypes and phenotypes using the Punnet square and answer the questions at each station

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          CLASS DEMONSTRATIONS

      1)    The teacher will go to a station and demonstrate- a flower is white, tall (W-dominant,   T-dominant) and another flower is pink, short (p-recessive, s-recessive) so if they cross-pollinate, the flower will be W, T -due to the dominant gene and demonstrate how to use a Punnett square on the white board to figure it out.

      -using the Punnett square, 16 combinations

      2)    Hazel eyes and multi-colored flowers are an example of what?

      -hazel eyes and multi-colored flowers are from cross-dominance, where the recessive and dominant gene mix and both become the new phenotype- physical trait. 



      3)   What mutation would you create?

          My mutation would be larger ears- so we could hear well!

References

PelletierTeach (2013, November 23).  Gregor Mendel’s Punnet Squares.
Retrived from: http://www.youtube.com/watch?v=d4izVAkhMPQ