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In Drosophila, the anterior determinant Bicoid is known to activate expression of the gene hunchback in the anterior half of the embryo. (Bicoid is a transcription factor, which binds to the promoter of the hunchback gene and stimulates transcription.) The gene chapeau is also activated by Bicoid, but requires higher levels of Bicoid to activate its expression than the hunchback gene requires. Where would you predict chapeau mRNA would be observed in a wild-type embryo?
a) Throughout the embryo
b) In the anterior half of the embryo
c) In the anterior quarter of the embryo
d) In the anterior ¾ of the embryo
e) In the posterior half of the embryo
f) In the posterior quarter of the embryo
Birth control pills maintain a high blood level of estrogen and progesterone. What is happening in the ovary when the blood level of estrogen is high? How is the uterus responding?
Explain the Phases of swallowing process in Dysphagia? i) Oral Phase: In this, food is placed in the mouth, mixed with saliva, chewed if required and formed into a bolus by t
Determine the Types of Foods used in space? Weight and volume have always been the primary design factors for every piece of hardware launched into space. The shuttle is no exc
special components and features
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V apour Theory (i) It was proposed by a Greek philosopher Pythagoras in 500 B.C. (ii) Each organ of an animal body emitted some kind of vapour and that a ne
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