Tracking Traits

Why do families share similar features like eye and hair color? Why aren’t they exact clones of each other? These questions and many more will be answered as well look into the fascinating world of genetics!

Genetics asks which features are passed on from generation to generation in living things. It also tries to explain how those features are passed on (or not passed on). Which features are stay and leave depend on the genes of the organism and the environment the organism lives in. Genes are the “inheritance factors “described in Mendel’s laws. The genes are passed on from generation to generation and instruct the cell how to make proteins. A genotype refers to the genetic make-up of a trait, while phenotype refers to the physical manifestation of the trait.

We’re going to create a family using genetics!

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7 Responses to “Tracking Traits”
  1. bac051201 says:

    Ok , thanks

  2. Aurora says:

    Although scientists know a lot about the genetics of different eye colors, one they don’t have a lot of distinctions about is the difference between gray and blue. There are two things that could determine gray eye color: the amount of melanin (pigment in the eye) made and the density of the proteins in the stroma, both of which can be determined by genetics.

    It’s not really well understood, but different people can have different versions of this gene, and some versions are better at making melanin than others. There’s not any name for it, like “hazel”, just “gray” or “blue”.

  3. bac051201 says:

    What is it called when you have a mix between blue and gray for eye color.

  4. Brett Barkley says:


  5. Rachel Johnson says:

    Thanks, it works now:)

  6. Rachel Johnson says:

    I cannot download the genetics table. It says “Access to this membership area is not allowed. Please go to “Membership information page” to renew or add subscription”. Is this not part of my subscription?

  7. Darla Lucero says:

    Wow, we three girls really had fun with this one. Thanks. Luceros

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