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A researcher has arrived at a method to prevent gene expression from Drosophila embryonic genes.The following questions assume that he is using this method.
-Which of the following are maternal effect genes that control the orientation of the egg and thus the Drosophila embryo?

Question

Quizplus · Accepted Answer

Maternal effect genes are those whose mRNA and protein are synthesized in the female parent, stored in the egg, and then used during the early stages of embryonic development. Egg-polarity genes are maternal effect genes that determine the orientation of the egg and therefore the embryo. Homeotic genes determine the identity of body segments in the developing embryo. Segmentation genes determine the number and polarity of segments in the embryo. Morphogens are signaling molecules that control cell differentiation during development. Enhancer genes regulate gene expression by binding to promoters and increasing transcription.

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