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ZOO 3603C – EXAM 3 EXAM WITH CORRECT ACTUAL QUESTIONS AND CORRECTLY WELL DEFINED ANSWERS LATEST ALREADY GRADED A+ 2025 – 2026

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ZOO 3603C – EXAM 3 EXAM WITH CORRECT ACTUAL QUESTIONS AND CORRECTLY WELL DEFINED ANSWERS LATEST ALREADY GRADED A+ 2025 – 2026

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ZOO 3603C – EXAM 3 EXAM WITH
CORRECT ACTUAL QUESTIONS AND
CORRECTLY WELL DEFINED ANSWERS
LATEST ALREADY GRADED A+ 2025 – 2026




Limb Dev II: what are the segment identity genes of the limb
bud? - ANSWERS-HoxA genes
HoxD genes


Limb Dev II: what hox genes control what segments of the
limb? - ANSWERS-Hox 9,10,11,13
Autopod: a-13
Zeugopod: a-11
Stylopod: a-10


Limb Dev II: how do the number of hox genes change
depending on location in the limb? - ANSWERS-more hox
genes are expressed more distally.
As you move proximally, the amount of hox genes decreases

, Limb Dev II: what sets up the anteroposterior axis of the
limb bud? - ANSWERS-ZPA


Limb Dev II: what does the ZPA produce? - ANSWERS-SHH


Limb Dev II: what happens to the limb bud if you over
express SHH or graft ZPA from posterior to anterior? -
ANSWERS-double posterior duplication


Limb Dev II: what happens if you knock out SHH in a mouse?
- ANSWERS-single, un-patterned digit


Limb Dev II: what marker is used to trace SHH in the limb? -
ANSWERS-LacZ


Limb Dev II: what determines the patterning of the digits? -
ANSWERS-Concentration of SHH and time dependent
mechanisms
Gradient


Limb Dev I: Name the parts of the limb - ANSWERS-
Stylopod: humerus, femur

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