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.

More Questions

#Question id: 8897

#Unit 9. Diversity of Life Forms

#Question id: 27636

#Unit 1. Molecules and their Interaction Relevant to Biology

Each single strand of the beta-sheet structure can be pictured as a twofold helix, that is, a helix with

#Question id: 11222

#Unit 7. System Physiology – Animal

A chemical that affects neuronal function but is not stored in presynaptic vesicles is ________.

#Question id: 10434

#Unit 6. System Physiology – Plant

Movement of the phytochrome into the nucleus takes place, which of the following is incorrect prediction about this movement?

#Question id: 28620

#Unit 2. Cellular Organization

APC/C works with core and substrate-targeting factors, the core is organized into several different modules, except?