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TLS Online TPP Program

#Question id: 8897

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

#SCPH28 | 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: 1728

#SCPH01 Biochemistry

Which of the following is characteristic of B- but not T-cells?
TLS Online TPP Program

#Question id: 15209

#SCPH06 I Botany

Agarose gels are formed by suspending dry agarose in aqueous buffer, in which usually Agarose concentration between
TLS Online TPP Program

#Question id: 961

#SCPH28 | Zoology

Which type of organisms can eliminate excess nitrogen by the direct excretion of ammonia?
TLS Online TPP Program

#Question id: 10800

#SCPH05 I Biotechnology

Which of the following secondary metabolites causes infertility in the
TLS Online TPP Program

#Question id: 5264

#SCPH28 | Zoology

Studies done by Buchner showed that ground-up yeast cells were able to convert sugar to alcohol. The components of the mixture that were responsible for this transformation were