BIOL 411 - 2017 Spring - Exam 3.pdf

BIOL 411 - 2017 Spring - Exam 3.pdf - BIOL 411 2017 Spring...

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

View Full Document Right Arrow Icon
BIOL 411 - 2017 Spring Name: Exam 3 Date: Write your name on each page; points will be deducted for omitted names. Write concise, precise sentences or lists, as appropriate. Do not exceed the space provided. Read all instructions carefully. 1. Given the diversity of structures to which neural crest cells contribute, specification is a critical aspect of neural crest development. A. The following image, from a published review article, illustrates two alternative hypotheses about neural crest cell potency (bipotent, multipotent, pluripotent, totipotent, unipotent, etc.). Hint: Note the difference between the left side and the right side. Alternative hypothesis #1 Alternative hypothesis #2 For alternative hypothesis #1, what is the potency of neural crest progenitors? For alternative hypothesis #2, what is the potency of neural crest progenitors? For alternative hypothesis #1, would you expect specification of the derivative cells to be autonomous or conditional? For alternative hypothesis #2, would you expect specification of the derivative cells to be autonomous or conditional? Page 1
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
BIOL 411 - 2017 Spring Name: Exam 3 Date: B. You perform the following experiment in an attempt to distinguish between the two alternative hypotheses. M ethods: Mark one premigratory neural crest cell. Then trace the lineage of that individual neural crest cell. For alternative hypothesis #1, sketch your predicted o bservations. For alternative hypothesis #1, sketch your predicted o bservations. 2. As its name suggests, an epithelial-to-mesenchymal transition (EMT) transforms epithelial cells into mesenchymal cells. A. Recognize themes in developmental biology. Identify two developmental biology events from BIOL 411 that involve an epithelial-to-mesenchymal transition.
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