Which of the following is the structure of the nucleotide at the branch site of a spliced intron?

#Question id: 28459

#Unit 5. Developmental Biology

 In c.elegans, the cell secreting LAG-2 and LIN-12 protein act as ligand and the receptor for this molecule, if Lin-12 undergo Loss-of-function mutation resulting, 

#Question id: 28460

#Unit 5. Developmental Biology

during the formation of eye lens induction in vertebrate eye, optic vesicle and head ectoderm are function as____

#Question id: 28461

#Unit 5. Developmental Biology

Head ectoderm is competent to respond to the paracrine factors made by the optic vesicles & induced to form the lens of the eye. If the optic vesicle is removed resulting,

#Question id: 28462

#Unit 5. Developmental Biology

The two major parts of the eye (lens and retina) co-construct each other, and the eye forms from which type of interaction ?

#Question id: 28463

#Unit 5. Developmental Biology

 First inducers of the lens are foregut endoderm and cardiac mesoderm, Foregut endoderm and cardiac mesoderm cause the synthesis of the factor in the head ectoderm during the late gastrula stage, these type of factor are____

#Question id: 28464

#Unit 5. Developmental Biology

Anterior neural plate produce the next signals, that promotes the synthesis of the Pax6 transcription factor, Expression of Pax6 protein leads to which fate?