Abiologist wants to use a radioactive isotope of nitrogen to radiolabel certain molecules in a culture of cells she is growing. if the biologist incubates her cells with n-15 ( a heavy isotope of nitrogen), which group of macromolecules will be labeled in the culture of cells? a) glucose b)glycogen c)lipids d) proteins

D) proteins

Explanation:

The N-15 is one of the isotopes used in proteomics, in which the full set of proteins expressed by a genome are studied. The method is called Stable Isotope Labeling by/with Amino acids in Cell culture (SILAC) in which the labeled amino acids are used to estimate the protein levels. With this method, the diseases biomarkers can be identified and studied.

small, big, or no change could occur in the phenotype. it could cause something as simple as a cats ears to curl backwards or something as frighting as death. it could also occur in the protien-coding area and have an effect on that but no effect on the amino acids. what has to occur is a changing in the hox gene or the control gene.