Gregor Mendel's Experiments

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Mendel conducted his second experiment, and these are the results.

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  • Are genes inherited together? That's the question Gregor Mendel asked himself whenever he began to conduct his second experiment.
  • He did this by crossing alleles, which are different forms of a gene. He would take homozygous plants, which contain identical alleles. By doing so, he created heterozygous plants, which contain different alleles. 
  • In his first experiment, Mendel discovered that some traits are dominant, meaning that they appear even if a recessive trait is present (recessive meaning that they are still present in the genes, but do not show up).
  •  Whenever Mendel conducted his second experiment, he did a dihybrid cross, which is crossing (breeding) two characters at the same time.
  • Mendel crossed different variants of pea seeds, such as yellow, round seeds with green, wrinkled seeds. By doing these experiments, he created one of the most famous laws in genetics that is still help true to this day.
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  • Mendel created the "Law of Independent Assortment." What does this mean? Well, the law states that certain factors that control different traits, such as eye color and height, are inherited separately from one another.
  • So, what does this law mean? Well, it tells us that if, for example, we see in a creature's genotype, or chemical composition, that they have green eyes, it cannot be automatically stated that they have brown hair. Only one factor controls a particular phenotype, or physical apperance, of a creature.
  • Wilkin, Douglas, and Jean Brainard. "Mendel's second experiment." 4 Sept. 2016, CK-12 Foundation,. 19, Mar. 2018.
  • Created by Nechmiah, Benjamin, Asia and Alyssa
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