The figure below shows the domains of expression of various maternal and gap genes as well as the expression pattern of the even-skipped gene. knirps (kni) represses expression of eve stripes 3, 4, 6, and 7.  Which stripe enhancer (stripe 3 or stripe 4) would you expect to have higher affinity binding sites for the Knirps protein.  Explain your answer.

Human Anatomy & Physiology (11th Edition)
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  • The figure below shows the domains of expression of various maternal and gap genes as well as the expression pattern of the even-skipped gene. knirps (kni) represses expression of eve stripes 3, 4, 6, and 7.  Which stripe enhancer (stripe 3 or stripe 4) would you expect to have higher affinity binding sites for the Knirps protein.  Explain your answer.
Figure 2 Regulation of even-skipped by maternal and gap gene gradients.
JA
1 2 3 4 5 6 7
anterior
posterior
2 enc
B
Bcd
Gt- 2 FKr
3+7 enc
4+6 enc
Hb
3 4 H Kni - 6 + 7
Transcribed Image Text:Figure 2 Regulation of even-skipped by maternal and gap gene gradients. JA 1 2 3 4 5 6 7 anterior posterior 2 enc B Bcd Gt- 2 FKr 3+7 enc 4+6 enc Hb 3 4 H Kni - 6 + 7
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