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Genes :microscope: dna (Gregor Mendel 240px-Gregor_Mendel_2 (Gregor Mendel…
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Genes :microscope:
Gregor Mendel
Gregor Mendel was a scientist who discovered the first genes. He publicized the first experiments and work on genes.
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He first was interested in pea plants and how their different characteristics varied and how they connected to their parent plants.
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His pea plants perfectible for experimentation. He observed color to child ratios, and plot it down on a simply mad punnet square.
His contribution to genes might be the most important, since he explained the genetic roll and how genes are then trait that can be sometimes in an a parent to a child organism.
Alleles
Dominant Alleles
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Dominant Alleles are the genes that will always come out in an organism, even if the genetic tossup splits between a dominant and a recessive. It will cover up any Recessive Allele :black_large_square:
Dominant Alleles will always win any genetic match up, unless the bonds does not include any dominant alleles, in which case the recessive allele will show up.
An example of a dominant allele would be black hair. It shadows most of any color gene, and will usually win in most genetic combos. Even if the genetic bond is of a dominant and recessive, it will still hide it and be the gene that will show upon in an organism.
This an example scenario... One parent of an organism has blonde hair, with both of their genetic bond being them. The other parent has black hair, and both of their allele bond is of a black hair. In this case, the organism will have no chance of having blonde hair; all combination result in both a dominant and recessive allele, and dominant alleles will always win.
Recessive Alleles
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Recessive Alleles are genes that may be in an organism, but will hidden by an overpowering Dominant Allele :forbidden:
An example of a Recessive Allele is Blonde Hair. There is very little chances of getting blonde hair, since other alleles, like black or brown hair, are more dominant. The chances become slimmer the more and more dominant genes one gets.
An example would be like this... One parent of an organism has genes of blonde hair and black hair. The other has both genes of blonde hair. In this genetic tossup, the chance for the organism in question will reduce to 50%, because any genetic match with a dominant allele will always become a dominant allele. In this case, the parent with two different alleles had black hair.
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The Gene Link Graph
- Then Comes the Nucleus of the Cell.
- Inside of the Nucleus are Genetic Highways that transport DNA, which are called Chromosomes
- In the Chromosomes are DNA which is transported in the Chromosomes
- In DNA, the specific segment of it is called a Gene
- The specific kind of gene, only one of the pair, is called an Allele
Genotype
A genotype is the group a genes an organism has. This can include having combination of 2 dominant alleles, 2 recessive Alleles, or one of each. The genotype are NOT exactly promised to be a organism's traits; it come down to Dominant and Recessive Alleles.
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Phenotype
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Phenotypes are the direct genes that are identified on an organism. Even if it may have different genes, the characteristics and genes that appear are Phenotype.
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