1/) Drosophila one-cell embryos are elongated in the A-P direction. You are newl

Question

1/) Drosophila one-cell embryos are elongated in the A-P direction. You are newly experimenting on Drosophila embryos and cannot tell the difference between their anterior and posterior ends. You nevertheless suck up cytoplasm from one end of a wild-type one-cell Drosophila embryo and then inject it into one side of a second wild-type one-cell Drosophila embryo. You do this a bunch of times. What would happen?

2.) Bicoid mRNA:

3.) Nanos protein:

4.) Hunchback mRNA:

Explanation / Answer

Question 1.

Answer. (d)

Question 2.

Answer. (a)

Question 3.

Answer. (e)

Question 4.

Answer. (e)

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