Practice Questions

TLS Online TPP Program

#Question id: 9605

A phylogenetic tree that is ʺrootedʺ is one

#Unit 9. Diversity of Life Forms

that extends back to the origin of life on Earth.
at whose base is located the common ancestor of all taxa depicted on that tree.
that illustrates the rampant gene swapping that occurred early in lifeʹs history.
that indicates our uncertainty about the evolutionary relationships of the taxa depicted on the tree.

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TLS Online TPP Program

#Question id: 5840

#Unit 8. Inheritance Biology

The sequence of proteins used in bacterial recombination is

TLS Online TPP Program

#Question id: 5841

#Unit 8. Inheritance Biology

How are the BRCA proteins and their genes implicated in breast cancer?

TLS Online TPP Program

#Question id: 5842

#Unit 8. Inheritance Biology

In homologous recombination in E. coli, the protein that moves along a double-stranded DNA, unwinding the strands ahead of it and degrading them, is:

TLS Online TPP Program

#Question id: 5843

#Unit 8. Inheritance Biology

In homologous recombination in E. coli, the protein that assembles into long, helical filaments that coat a region of DNA is:

TLS Online TPP Program

#Question id: 5844

#Unit 8. Inheritance Biology

In homologous genetic recombination, RecA protein is involved in:

TLS Online TPP Program

#Question id: 5845

#Unit 8. Inheritance Biology

Which of the following statements is false? In vitro, the strand-exchange reaction: