T tubules
See this link for nice details...http://people.eku.edu/ritchisong/301notes3.htm In muscle contraction the transverse tubules transmit the muscle impulse into the inner cell.
The ribosome is signaled to begin making a polypeptide by the start codon (AUG) present in the messenger RNA (mRNA) sequence. This start codon specifically codes for the amino acid methionine, which marks the initiation point for protein synthesis.
The end of germination is signaled by the emergence of the plant shoot above the soil surface, and the beginning of growth is marked by the development of leaves and the expansion of roots to uptake nutrients from the soil. This transition is crucial for the plant to start photosynthesis and establish itself in its environment.
The cell clock is basically a group of molecules which appear after a cell dies. These molecules signal a cell around the area of the dead cell to replace it. After a cell is signaled then it begins the cell cycle.
Synthesis of a protein stops when a stop codon is reached on the mRNA during translation. This signals the ribosome to release the newly synthesized protein so it can fold into its functional structure.
Armistice Day signaled the end of World War I.
The coronation of Napoleon as Emperor in 1804 signaled the end of modernism.
Armistice Day signaled the end of World War I.
Which war do you refer to? What people were signaled Please be more specific. thank you.
Hormones
uhh... what?
no
The coming down of the Berlin Wall signaled the beginning of the end of the Cold War in 1989
Reconstruction
cued
your butt
March 20, 1980-A magnitude 4.2 earthquake signaled the reawakening of the volcano after 123 years.