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TLS Online TPP Program

#Question id: 8897

Which of the following statements would be least acceptable to most zoologists?

#XL - T Zoology
  1. The extant cephalochordates (lancelets) are contemporaries, not ancestors, of vertebrates.
  2. The first fossils resembling cephalochordates appeared in the fossil record around 550 million years ago.
  3. Recent work in molecular systematics supports the hypothesis that cephalochordates are the most recent common ancestor of all vertebrates.
  4. The extant cephalochordates are the immediate ancestors of the fishes.
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TLS Online TPP Program

#Question id: 12757

#XL - T Zoology

Biomanipulation can best be described as
TLS Online TPP Program

#Question id: 429

#XL - Q Biochemistry

An organism that uses organic molecules as carbon sources and obtains energy by oxidizing inorganic molecules is a(an) ________.
TLS Online TPP Program

#Question id: 5745

#XL - T Zoology

Consider a species with a diploid (2n) number of 16 chromosomes. How many chromosomes would be found in a trisomic body cell?
TLS Online TPP Program

#Question id: 815

#XL - Q Biochemistry

The cis conformation shows Cα atoms are on the same side of the peptide bond, is ∼8 kJ mol−1 less stable than the trans conformation. Why?
TLS Online TPP Program

#Question id: 28139

#XL - U Food Technology

Chocolate liquor is a