Question

Ephrin cell-to-cell contact signaling is mediated by:

A. H-Ras
B. RhoA
C. Rab
D. N-Ras

Answer 1

Ephrin cell-to-cell contact signaling is mediated by Ras proteins, including H-Ras and N-Ras. Ras proteins activate phosphorylation cascades, such as the MAP kinase cascade, which trigger cellular responses.

Step-by-step explanation:

The ephrin cell-to-cell contact signaling is mediated by the Ras protein, specifically H-Ras and N-Ras. Ras proteins are small G-proteins that play a crucial role in signal transduction pathways.

When activated, Ras proteins initiate a phosphorylation cascade, such as the MAP kinase cascade, which leads to various cellular responses. Ephrin cell-to-cell contact signaling is mediated by Ras proteins, including H-Ras and N-Ras. Ras proteins activate phosphorylation cascades, such as the MAP kinase cascade, which trigger cellular responses.