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TLS Online TPP Program

#Question id: 32932

Which of the following statements are NOT TRUE for archaea?

#XL - S Microbiology
  1. N-Formylmethionine is the first amino acid to initiate new polypeptide chain synthesis in archaea
  2. Membrane of archaea contains sterols like hopanoids rather than sterols
  3. Cell wall in archaea contains S-layer only or combine with polysaccharide
  4. Methionine is the first amino acid used during protein synthesis in archaea 
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TLS Online TPP Program

#Question id: 5740

#XL - S Microbiology

Pollen from one species germinates on the stigma of another related species and sexually fertilizes the ovule. Most of the resulting plants are sterile but some of the resulting offspring undergo chromosome duplication resulting fertile plants. The fertile offspring are known as
TLS Online TPP Program

#Question id: 429

#XL - R Botany

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: 59

#XL - Q Biochemistry

Nitrogen (N) normally forms three covalent bonds with a valence of five. However, ammonium has four covalent bonds, each to a different hydrogen (H) atom (H has a valence of one). What do you predict to be the charge on ammonium?
TLS Online TPP Program

#Question id: 18078

#XL - R Botany

Which of the following can be found in gymnosperms? 
TLS Online TPP Program

#Question id: 11648

#XL - T Zoology

Within minutes following a normal delivery, flow through the foramen ovale decreases dramatically. What is the cause of this change?