Solve your IGNOU Doubts
Solve your IGNOU Doubts
Question:

Aluminium has the highest nuclear charge, so its 2p peak should have the largest binding energy, but shielding effects reverse this trend.
Justify your answer. 

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Question:

RNA splicing

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Question:

Basic transcription unit

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Question:

Compare the prokaryotic DNA replication and eukaryotic DNA replication.

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Question:

The spectrum shows more aluminium atoms than nitrogen or fluorine, so its peak appears at the lowest binding energy due to dilution.

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Question:

Explain the role of DNA double helix in DNA protein complex.

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Question:

Nitrogen has more valence electrons than fluorine or aluminium, therefore its peak appears at the highest binding energy.

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Question:

Peak X corresponds to F 1s electrons, which have the highest binding energy because fluorine’s high electronegativity and small size give its 1s electrons a large effective nuclear attraction. Peak Y is N 1s and Peak Z is Al 2p.

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Question:

Chromosome banding patterns

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Question:

 C- value paradox

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Question:

A photoelectron spectrum of a compound containing nitrogen (N), aluminium (Al), and fluorine (F) shows three strong peaks at the following binding energies:
Peak X: ~686 eV
Peak Y: ~399 eV
Peak Z: ~73 eV

Find the best option from the choices given below that best explains the relative positioning of these peaks in terms of binding energy.

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Question:

Write an overview on signaling molecules.

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Question:

Explain how do chromosomes behave during the mitosis.

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Question:

Describe the components of extracellular matrix.

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Question:

What is meant by the Balmer series of hydrogen? What will be the wave number of the longest wavelength in the Balmer series?

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Question:

 A photon of visible light has a wavelength of equation. Calculate its 
(i) wavenumber
(ii) frequency
(iii) energy per mol

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Question:

Explain why the atomic spectra are line spectra whereas the molecular spectra are band spectra. 

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Question:

 5G services in India are provided at a frequency of equation. Calculate the wavelength of the radiation. 

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Question:

What is the photoelectric effect? Write the equation of Einstein’s photoelectric law.

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Question:

Explain the structure and function of peroxisomes.

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