Which of the following developed during the evolution of eukaryotic cells from prokaryotic cells?

SRPs are an important part of the secretory pathway. After peptide chain elongation has paused due to binding of the SRP to the ribosome, where do SRPs dock to with their receptors?

The signal recognition particle (SRP) is a [1], and its function is to [2].

Using phylogeny all living organisms can be divided into the following domains:

Which of the following is a ribonucleoprotein required for the delivery of membrane and secretory proteins to the endoplasmic reticulum?

Which of the following is/are advantages to the constant degradation and reformation of proteins?

Which amino acid does not have a primary

Some proteins are synthesized as inactive precursors called ______.

Which of the following amino acids combinations have side chains with groups that have the greatest ability to stabilize the tertiary structure of a protein? 

Sheets composed of two layers of amphipathic molecules arranged with the hydrophilic groups on the surface and the hydrophobic groups buried in the center that form in water are called