Interrupted matting of different Hfr strain with F- E.coli cell resulting generation of following strain  Order of gene is

#Question id: 18869

#Unit 13. Methods in Biology

#Question id: 24565

#Unit 8. Inheritance Biology

#Question id: 2625

#Unit 2. Cellular Organization

positive regulation is applied when

#Question id: 5598

#Unit 5. Developmental Biology

The vitelline envelope of the sea urchin egg

#Question id: 7189

#Unit 5. Developmental Biology

Following statements were made regarding vulval development in C. elegans:

A. The formation of the anchor cell is mediated by lin-12, the C. elegans homologue of the Notch gene.

B. The formation of the anchor cell is mediated by lin-12, the C. elegans homologue of the Delta gene.

C. The lin-12 gene needs to function only in that cell destined to become the uterine precursor cell.

D. Presumptive Anchor cell also need lin-12.

E. Two cells originally synthesize both the signal for uterine differentiation (the LAG-2 protein, homologous to Delta) and the receptor for this molecule (the LIN-12 protein, homologous to Notch.

Which one of the following options represents a combination of correct statements?