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TLS Online TPP Program

#Question id: 3775

What are telomeres?

#Unit 3. Fundamental Processes

  1. the structures that hold two sister chromatids together

  2. enzymes that elongate the DNA strand during replication

  3. the sites of origin of DNA replication

  4. the ends of linear chromosomes

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TLS Online TPP Program

#Question id: 23653

#Unit 13. Methods in Biology

In a genomic DNA library the frequency of occurrence of a desired clone, n, also represents
TLS Online TPP Program

#Question id: 449

#Unit 1. Molecules and their Interaction Relevant to Biology

The standard free-energy changes for the reactions below are given. Phosphocreatine -> creatine + Pi DG'° = –43.0 kJ/mol ATP ->  ADP + Pi DG'° = –30.5 kJ/mol What is the overall DG'° for the following reaction? Phosphocreatine + ADP -> creatine + ATP
TLS Online TPP Program

#Question id: 33492

#Unit 2. Cellular Organization

If we could identify all protein–protein interactions, we could define the total number of independent complexes of proteins. This is referred as the interactome. Which techniques is most appropriately used for interactome analysis?
TLS Online TPP Program

#Question id: 11395

#Unit 9. Diversity of Life Forms

Mitochondria are thought to be the descendants of certain alpha -proteobacteria. They are, however, no longer able to lead independent lives because most

genes originally present on their chromosome have moved to the nuclear genome. Which phenomenon accounts for the movement of these genes?
TLS Online TPP Program

#Question id: 2425

#Unit 2. Cellular Organization

Which of the following is (are) actin-based structures?

a. adherins belt                        b. contractile ring        c. mitotic spindle

d. nuclear lamina         e. stress fibers