Evolution and DNA

Evolution and DNA
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  • Dominant and Recessive Traits
  • Natural Selection
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  • 
  • We peacefully live and reproduce in the skies! There are many variations and no one of them has any advantage over the other. 
  • In every community there will always be variation between animals. Even in the same species, some will have a different color or shape, but they all need to have a way to reproduce and pass down their traits.
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  • 
  • When animals reproduce they pass down their traits, which can be dominant or recessive. The dominant genes hide the recessive ones, while the recessive traits can only be seen in company of another recessive. In this case, the black fur is dominant when the white fur is recessive.
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  • 
  • R
  • r
  • R
  • RR
  • Rr
  • However, during the day the fairy people hunted pegasus. They favored the brighter colored ones because they tasted sweeter.  
  • Uppercase R is the dominant trait, the lowercase r is recessive. In this scenario, both mice are black but have a dominant black gene that hides their recessive white gene.
  • Rr
  • rr
  • r
  • This chart is called a Punnet square
  • Hummm, we're parents now honey.
  • As a result of this gene mix, three fourths of their offspring will have black fur while one fourth will have white fur. So if the mother has a litter of twelve mice, nine will have black fur and three will have white fur.
  • Where's Johnny?!
  • As a result most of the surviving pegasus were the unwanted vampire pegasus. They went on to reproduce and pass down the traits that helped them survive. Over time the entire population were vampire pegasus.
  • Right here mom!
  • Being biologically "fit"
  • There were always different variations of pegasus. But they all lived happily in the skies.  
  • Sorry guys, I'm leaving!
  • Throughout these three stories, ask yourself who is the "fittest" mother bunny?
  • It's gonna be hard to keep all eight of these trouble makers alive!
  • The first rabbit mother gave birth to nine kits, but one died at birth.
  • As the litter of kits attempted to make it through childhood, two fell off a cliff and three were eaten by a snake. An additional two got lost in the desert and died of thirst.
  • It's hard being a single mom. 
  • In the end only one rabbit survives the hardships of the desert, and leaves to start its own family. The mother starting with nine, saw only one survive until adulthood.
  • Bye love, good luck at life!
  • Bye mom!
  • Ugh, I've done this a million times. Raising these kids is gonna be a piece of cake!
  • The second doe starts with three kits in a peaceful, less difficult environment.
  • zzzz...
  • The mama bunny was very protective of her little ones, the worst thing that happened to them was a bee sting.
  • If you want them, you're gonna have to go through me!
  • Wow mom's tuff!
  • Starting with three and ending with three, the mother gazed at her three babies leaving to start their own lives.
  • Mmmm, time to start the process over again.
  • I know the farmer's risky, but there are no predators here and unlimited food! A perfect haven for my kids!
  • One mother gave birth to five kits in a farmer's garden.
  • Selective Breeding
  • During the winter, the farmer caught one of the babies eating his cauliflower and cooked a rabbit pie for Christmas. 
  • That smells delicious honey, what is it?
  • Rabbit pie, sweet heart!
  • The bunny babies learn from what happened to their brother and leave their mother once they have matured.
  • Bye kids! Beware of farmers so you don't end up like Freddy!
  • We will mom! Bye!
  • Who was the "fittest" of them all?
  • The third bunny mom was actually the fittest! Though the first mom gave birth to the most babies and the second mom didn't have any kits die, biological fitness is measured by the most offspring you have at the end. Because the third mom had four surviving babies leave the home, while the first had only one and the second had three, she was the most fit.
  • First Generation
  • Tenth Generation
  • Twentififth Generation
  • Long ago there were no perfectly plump and pink pigs, instead there were only wild boars. People started to breed the pigs with nicer, tamer features, such as friendlier behavior, less body hair, and a shorter snout.
  • Fiftieth Generation
  • Modern Generation
  • Hundreth Generation
  • Because of selective breeding we now have hairless, non-aggressive, non-labor intensive, fast growing pigs.
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