If one were to inject bicoid⁺ cytoplasm into the middle of a Drosophila egg immediately prior to fertilization,the embryo would A)try to form anterior structures in the middle of its body. B)try to form posterior structures in the middle of its body. C)not develop at all. D)develop normally.

Question

Quizplus · Accepted Answer

Bicoid is a protein that is involved in determining the anterior-posterior polarity of the Drosophila embryo. Injecting bicoid⁺ cytoplasm into the middle of a Drosophila egg immediately prior to fertilization would result in the activation of anterior genes in the middle of the body, leading to the formation of ectopic anterior structures. Therefore, the answer is A, as the embryo would attempt to form anterior structures in the middle of its body.

If One Were to Inject Bicoid+ Cytoplasm into the Middle

If One Were to Inject Bicoid⁺ Cytoplasm into the Middle