A medical laboratory scientist performs fluorescence in situ hybridization (FISH) on interphase chromosomes using a probe to chromosome 21. In all cells examined, two signals were seen. These results are interpreted as:

A protein with the sequence DAILMNCST is mutated such that amino acids L and M are deleted. How is this mutation noted by accepted nomenclature?

Which of the following is involved in connecting the centromere to the spindles during chromosome segregation in mitosis?

Which of the following types of chromatin are open and actively involved in gene expression (transcription)?

Two enzymes of unknown concentrations, A and B, act on the same substrate, S. The initial velocity (V0) of the reaction catalyzed by Enzyme B is 60% of the V0 for Enzyme A when both enzymes are assayed at = 100 mM. Enzyme A has a Km of 20 mM, and enzyme B has a Km of 100 mM. Both Enzyme A and B have a Vmax of 120 mM/s. (6 pts)   A) What is the initial velocity (V0) for Enzyme A with its kinetic parameters and provided? (3 pts)   B) From these results, can you draw the conclusion on whether Enzyme A’s kcat is higher/lower than or equal to that of Enzyme B? Explain. (3 pts)

A nucleosome consists of DNA and which of the following combinations of histone proteins?

Seyfang Questions: 20-33 In which compartment of the cell does glycolysis occur? (1.5 pts)

What are the major features of the molten globule? (1.5 pts)

_________________________ was renamed “The Pantheon” after the French Revolution.

The English engineer that retired early, and wrote, so those who came after him could benefit from his experiences was ________________________.