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One Fish, Two Fish, Red Fish, Blue Fish!

One Fish, Two Fish, Red Fish, Blue Fish!. Introduction to Genetics. Envelopes. Your envelope has 4 fish Red fish- female traits Blue fish- male traits Work with a partner to determine what the offspring will look like. Time limit- 3 minutes. Punnett Squares.

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One Fish, Two Fish, Red Fish, Blue Fish!

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  1. One Fish, Two Fish, Red Fish, Blue Fish! Introduction to Genetics

  2. Envelopes • Your envelope has 4 fish • Red fish- female traits • Blue fish- male traits • Work with a partner to determine what the offspring will look like. • Time limit- 3 minutes

  3. Punnett Squares • Monohybrid Cross- 1 trait being crossed

  4. Punnett Squares R R B B

  5. Punnett Squares R R B BR BR B BR BR

  6. Genetic Terms • Genetics- thescienceofheredity, study of genes • Allele- anyofseveralformsofagene (a single letter) • Dominant- the allele that ‘masks’ the recessive allele • Recessive- the allele that is ‘masked’

  7. Genetic Terms • Trait- aninheritedcharacteristic • Monohybrid Cross- agenetic cross made to examine the distributionofonespecific set of alleles in the resulting offspring. • Genotype- the genetic makeup of an organism or group of organisms with reference to a single trait, set of traits, or an entire complexoftraits. • Phenotype- theappearance of an organism resulting from the interactionofthegenotypeandthe environment.

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