Anthro 7 Practice MT 3 - Anthro 7 Midterm Key Winter 1998 I...

Info icon This preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
Anthro 7 Midterm Key, Winter 1998 I strongly discourage re-grade requests. Any such request must be made in writing and must explain why you think your answer deserved more points than it received. If you request a re-grade, we may re-grade all your answers, not just the one that want re- graded, and we may subtract points rather than add them. Here are model answers to the midterm questions: (1) According to Darwin's theory, what three conditions must occur in order for natural selection to occur? Describe each condition in a phrase or a complete sentence, not a single word. More offspring are produced than can survive. Organisms within populations vary, and this variation affects their ability to survive and reproduce. Variation is heritable, i.e. offspring tend to resemble their parents. (2) Are an organism's genes more like a blueprint , or more like a recipe ? Explain your answer. As part of your explanation, describe the relevant difference between a (literal) blueprint and a (literal) recipe. It's more like a recipe. The components of a recipe (words, letters) don't map one-to-one on to the components of, e.g. a cake (flavor, texture). Instead, a recipe specifies which processes to perform on which ingredients in what order. Similarly, the genes, which code directly only for protein synthesis, specify a complex sequence of steps performed on various substances. In contrast, the components of a blueprint (lines, spaces) do map one-to-one on to the components of, e.g. a house (walls, rooms). The flow of information between blueprint and house is reversible, but the flow of information between recipe and cake is not reversible.
Image of page 1

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern