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13. An aquatic arthropod called a Cyclops has antennae that are either smooth or barbed. The allele for barbs is dominant. In the same organism, resistance to pesticides is a recessive trait. Make a "key" to show all the possible genotypes (and phenotypes) of this organism. Use the rabbit key to help you if you're lost. Key: Barbed = AA Smooth = aa Resistance to pesticide = pp Susceptible to pesticide = Pp 14. A Cyclops that is resistant to pesticides and has smooth antennae is crossed with one that is heterozygous for both traits. Show the genotypes of the parents. aapp x Aa 15. Set up a Punnett square for the cross.

          13. An aquatic arthropod called a Cyclops has antennae that are either smooth or barbed. The allele for barbs is dominant. In the same organism, resistance to pesticides is a recessive trait. Make a "key" to show all the possible genotypes (and phenotypes) of this organism. Use the rabbit key to help you if you're lost.

Key: Barbed = AA
Smooth = aa
Resistance to pesticide = pp
Susceptible to pesticide = Pp

14. A Cyclops that is resistant to pesticides and has smooth antennae is crossed with one that is heterozygous for both traits. Show the genotypes of the parents.
aapp x Aa

15. Set up a Punnett square for the cross.

13. An aquatic arthropod called a Cyclops has antennae that are either smooth or barbed. The allele for barbs is dominant. In the same organism, resistance to pesticides is a recessive trait. Make a "key" to show all the possible genotypes (and phenotypes) of this organism. Use the rabbit key to help you if you're lost.

Key: Barbed = AA
Smooth = aa
Resistance to pesticide = pp
Susceptible to pesticide = Pp

14. A Cyclops that is resistant to pesticides and has smooth antennae is crossed with one that is heterozygous for both traits. Show the genotypes of the parents.
aapp x Aa

15. Set up a Punnett square for the cross.

Added by Lori O.

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