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#Question id: 59


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?

#Unit 1. Molecules and their Interaction Relevant to Biology
  1. +1

  2. -1

  3. +2

  4. -2


Answer:- Option(s): 1


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#Question id: 23863

#Unit 13. Methods in Biology

In 1997, Dolly the sheep was cloned. Which of the following processes was used?

TLS Online TPP Program

#Question id: 12707

#Unit 8. Inheritance Biology

AaBb=100% chance of crossing over between gene A and B than chance of  recombination?

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#Question id: 19881

#Unit 13. Methods in Biology

The DNA moleclule to which the gene of insert is integrated for cloning is called

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#Question id: 12223

#Unit 10. Ecological Principles

Evidence shows  that some grasses benefit from being  grazed. Which of the following  terms would  best describe this plant-herbivore interaction?

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#Question id: 8861

#Unit 9. Diversity of Life Forms

Which of the following is true of members of the phylum Cnidaria?

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