Practice Questions

  1. Home
  2. Free Resources
  3. Practice Questions
  4. 18140
TLS Online TPP Program

#Question id: 4126

Which one of the following is true about the genetic code?

#XL - T Zoology

  1. All codons recognized by a given tRNA encode different amino acids.

  2. It is absolutely identical in all living things.

  3. Several different codons may encode the same amino acid.

  4. The base in the middle position of the tRNA anticodon sometimes permits “wobble” base pairing with 2 or 3 different codons.

More Questions
TLS Online TPP Program

#Question id: 20198

#XL - P Chemistry

The wavelength of radiation emitted when in a hydrogen atom electron falls from infinity to stationary state 1, would be (Rydberg constant = 1·09 × 107m–1)
TLS Online TPP Program

#Question id: 20199

#XL - P Chemistry

The relationship between energy E, of the radiation with a wavelength 8000 Å and the energy of the radiation with a wavelength 16000 Å is
TLS Online TPP Program

#Question id: 20200

#XL - P Chemistry

The energy of second Bohr orbit of the hydrogen atom is –328 kJ mol–1, hence the energy of fourth Bohr orbit would be
TLS Online TPP Program

#Question id: 20201

#XL - P Chemistry

Which of the following statements in relation to the hydrogen atom is correct?
TLS Online TPP Program

#Question id: 20202

#XL - P Chemistry

The correct order of number of unpaired electrons in the ions Cu2+, Ni2+, Fe3+ and Cr3+ is
TLS Online TPP Program

#Question id: 20203

#XL - P Chemistry

The most probable radius (in pm) for finding the electron in He+ is