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Shown Below Is a List of Molecules That Function in Drosophila

Question 36

Matching

Shown below is a list of molecules that function in Drosophila development (a–g) and a list of possible distribution patterns (1–5). Match the molecule(s) showing that type of distribution pattern.

Premises:
Highest gradient is in the anterior end of the embryo.
Highest gradient is in the posterior end of the embryo.
Highest gradient is at the ventral midpoint of the embryo.
This is distributed throughout the oocyte/embryo.
This is present uniformly in the oocyte plasma membrane.
Responses:
toll transmembrane receptor
hunchback protein
activated SPZ ligand
inactive DL protein
active DL protein
NOS protein
Bicoid protein

Correct Answer:

toll transmembrane receptor
hunchback protein
activated SPZ ligand
inactive DL protein
active DL protein
NOS protein
Bicoid protein
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