exam12002 - MCB 410 SPRING 2002 First Hour Exam February 8...

Info icon This preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
MCB 410 SPRING 2002 First Hour Exam February 8, 2002 1 (16pts ). Proteins are often made up of multiple distinct domains. A. (8pts) What is meant by a STRUCTURAL protein domain? Give two specific examples. (4pts for definition; 2pts for each example) B. (8pts) What is it about the structure of eukaryotic GENES that may have promoted the evolution of new PROTEINS that consist of multiple domains? 2. (20 pts) You are studying a new human protein. In order to learn how this protein may have evolved, you compare its sequence to homologous proteins in other organisms. Using the similarity or their protein sequences you construct an evolutionary tree showing how your protein may have evolved. This tree is shown below.
Image of page 1

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

View Full Document Right Arrow Icon
2 continued. A (8pts). Explain what this tree tells you about the evolution of your protein. 2B. (6pts) What is most likely to have occurred to give rise to the branch labeled 1? 2C. (6pts) What is most likely to have occurred to give rise to the branch labeled 2? 3. (7 Pts) How do animal cells maintain membrane fluidity, and hence membrane function, in response to decreased temperature?
Image of page 2
Image of page 3
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