What do gap genes, pair-rule genes, segment polarity genes, and homeotic genes all have in common?
A) Their products act as transcription factors.
B) They have no counterparts in animals other than Drosophila.
C) Their products are all synthesized prior to fertilization.
D) They act independently of other positional information.
E) They apparently can be activated and inactivated at any time of the fly's life.

Question

Quizplus · Accepted Answer

Gap genes, pair-rule genes, segment polarity genes, and homeotic genes all encode transcription factors that regulate the expression of downstream genes involved in patterning the developing embryo.

What Do Gap Genes, Pair-Rule Genes, Segment Polarity Genes, and Homeotic