The first step of protein synthesis is . This step occurs in the of the cell. During this step the enzyme makes a copy of a gene out of RNA. This is called a RNA or mRNA. Some parts of mRNA called have to be cut out because they are not part of the code for the final protein. This is called mRNA splicing. The remaining parts which do code for the protein being built are called .

Asolution of an enzyme and a substrate was placed in a water bath and the temperature of the reaction was raised gradually. the graph shown was plotted at the end of the experiment. what can be concluded from the graph? a) temperature has no effect on the activity of the enzyme. b) the effect of temperature on the enzyme is unpredictable. c) the enzyme shows increased activity up to a certain temperature. d) the activity of the enzyme is inversely proportional to the temperature.

The first amino acid of a new polypeptide chain is

Which of the following happened during the precambrian era? the first prokaryotic cells the first eukaryotic cells development of photosynthesis all of the above