Practice Questions

TLS Online TPP Program

#Question id: 9605

A phylogenetic tree that is ʺrootedʺ is one

#XL - S Microbiology

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: 1564

#XL - S Microbiology

When antibodies bind antigens, the clumping of antigens results from ________.

TLS Online TPP Program

#Question id: 10672

#XL - T Zoology

Which of the following is incorrect match of protective strategy done by organism?

TLS Online TPP Program

#Question id: 17270

#XL - S Microbiology

which of the following are the three important components of Electrophoresis

TLS Online TPP Program

#Question id: 19502

#XL - P Chemistry

According to Aufbau principle a new electron enters the orbitals when:

TLS Online TPP Program

#Question id: 15248

#XL - S Microbiology

Which of the following groups of microorganism contain both superoxide dismutase and catalase enzymes for growth?