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Question

Callus is defined as :

The correct answer is
Mass of parenchymatous tissue with meristematic loci

Callus Definition Explained

Callus is a biological term, primarily used in the context of plant biology and tissue culture.

The correct definition identifies callus as:

  • A mass of tissue originating from plant cells.
  • Specifically composed of parenchymatous cells.
  • Containing meristematic loci, which are regions capable of active cell division and growth.

This undifferentiated mass of cells is foundational for various plant biotechnology applications, enabling processes like regeneration and propagation.

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Important Questions from Miscellaneous

  1. Which of the following relationships is/are not true?
    (A). Most probable velocity = $\sqrt{\frac{2RT}{M}}$
    (B). PV = $\frac{3}{2}kT$
    (C). Compressibility factor Z = $\frac{pV}{nRT}$
    (D). Average kinetic energy of gas = $\frac{1}{2}kT$
    Choose the correct answer from the options given below
  2. Match List-I with List-II
    List-IList-II
    Electronic ConfigurationFirst Ionisation energy (kJ mol$^{-1}$)
    (A). ns$^2$(I). 2100
    (B). ns$^2$np$^1$(II). 1400
    (C). ns$^2$np$^3$(III). 800
    (D). ns$^2$np$^6$(IV). 900

    Choose the correct answer from the options given below:
  3. The shielding constant of a 2p electron (calculated using Slater's rules) is
  4. Match List-I with List-II
    List-IList-II
    SpectroscopyProperty
    (A). Raman(I). Polarizability
    (B). FTIR(II). Dipole Moment
    (C). UV-Visible(III). Absorbance
    (D). NMR(IV). Spin

    Choose the correct answer from the options given below:
  5. The structure of protein comprises of:
    (A). Primary structure of protein is associated with amino acids
    (B). Secondary structure of protein is associated to peptides
    (C). Tertiary structure of protein is associated with polypeptide chains
    (D). Quaternary structure of protein is associated with polypeptide chains
    Choose the correct answer from the options given below:
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