Guppy Inheritance Science Fair Project Report

Guppy Inheritance Science Fair Project Report

Peter’s Guppy Inheritance Science Fair Project tested to find out if a black male guppy and yellow/green female mated… would it result in black male and yellow/green female offspring.

9th Grade
PA, USA

Background Info
The guppy (Poecilia reticulata) is a very popular freshwater fish for aquariums. The guppy can range in size from 2.5 to 6 centimeters long. The gestation period of a guppy is approximately 21-30 days long. The telltale sign of a pregnant female is a dark spot by its anus. It can take the female up to an hour to give birth to its brood of 5 to 30 fry (baby fish). After giving birth the female guppy is ready to be re-impregnated in around three hours. Fry take three months to acquire color. These facts make the guppy the perfect choice for my Biology Project.

Hypothesis
I hypothesize that when a black male guppy and yellow/green female mate it will result in black male and yellow/green female offspring. Also when a orange male guppy and yellow/green female mate it will result in grey male and yellow/green female offspring.

Materials

  • 4 20 long aquariums
  • 4 sponge filters
  • 4 water heaters
  • 4 tank lights
  • 4 female guppies
  • 2 male guppies
  • Fish flake food
  • Gravel
  • Plants
  • pH meter
  • Fish net
  • Plastic tube
  • Aquarium stands
  • Camera

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