Monday, October 28, 2013

Atoms to Traits


  1. Explain the significance of Mendel.
    Mendelnted by breeding different peas. He found obvious morphological differences such as tall versus short stems, wrinkled versus smooth seeds, and many more. His experiments
  2. Draw the structure of DNA and who discovered this structure.
    discovered by James D. Watson
  3. Explain each of the five examples of variations that occur to DNA and give an example of each.
    Point Mutation - a single base-pair change.
    Insertion - the insertion/addition of a base-pair sequence into a gene
    Gene Copy Number - the duplication of entire genes by copying errors during cell division which can lead to differences between speciesDeletion - the absense of the sequences of base-pairsInversion - a chromosome rearrangment in which a segment of the chromosome is reversed end to end
  4. What is evo-devo?
  5. A category of evolutionary biology that concentrated on studying the effects of changes in important developmental genes and how they affect evolution. His experiments changed the general perception of heritable variants from ephemeral and blendable to discreet entities passed from parents to offspring, which are in fact presen
  6. Make a connection between human migration and the mutation of lactose intolerance.
    In the past, most humans were lactose intolerant in adulthood, because they only needed the nourishment of milk in their childhood. At some point in time, a genetic mutation formed that allowed us to handle the proteins in milk and use it as nourishment in our adulthood. This happened as our ancestors traveled to Europe, the Middle East, Africa, and on. Later in time, we were forced into an issue where we were forced to consume milk. This is how the genetic mutation formed.

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