#Question id: 7235
#Unit 5. Developmental Biology
Following statements are regarding to the wingless gene in drosophila.
A.
In the cells transcribing the wingless gene, wingless mRNA is translocated by
its 3’UTR to the apex of the cell. At the apex, the wingless message is translated
and secreted from the cell.
B.
The cells expressing engrailed can bind this protein because they contain
Patched, which is the Drosophila membrane receptor protein for Wingless.
C.
Binding of Wingless to Frizzled activates the hedgehog signal transduction
pathway, resulting in the continued expression of engrailed.
D.
Wingless protein also acts in an autocrine fashion, maintaining its own
expression.
Which of the following combinations is correct?
#Question id: 33333
#Unit 2. Cellular Organization
#Question id: 11687
#Unit 7. System Physiology – Animal
Spermatogenesis is regulated by a negative feedback control system in which follicle-stimulating hormone (FSH) stimulates the steps in sperm cell formation. What is the negative feedback signal associated with sperm cell production that inhibits pituitary formation of FSH?
#Question id: 27390
#Unit 1. Molecules and their Interaction Relevant to Biology
Some elements exist naturally as molecules. Such as, hydrogen and oxygen exist as two-atom molecules, but Sulfur and phosphorus normally exists as
#Question id: 23862
#Unit 13. Methods in Biology