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Important Questions on Molecular Genetics

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Biology>Genetics and Evolution>Molecular Genetics>Packaging of DNA Helix
Although a prokaryotic cell has no defined nucleus, yet DNA is not scattered throughout the cell. Explain.
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Biology>Genetics and Evolution>Molecular Genetics>Packaging of DNA Helix
Chromatin contains
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Biology>Genetics and Evolution>Molecular Genetics>Packaging of DNA Helix
The net electric charge on DNA and histones is
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Biology>Genetics and Evolution>Molecular Genetics>Packaging of DNA Helix
Which amino acids are present in histones?
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Biology>Genetics and Evolution>Molecular Genetics>Packaging of DNA Helix
Read the following statements and select the correct option.
(i) Loosely packed and lightly stained region of chromatin are called as heterochromatin.
(ii) Densely packed and dark stained region of chromatin are called as euchromatin.
(iii) A typical nucleosome contains 200 bp of DNA helix.
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Biology>Genetics and Evolution>Molecular Genetics>Packaging of DNA Helix
The packaging of chromatin at a higher level requires an additional set of proteins that collectively are referred to as
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Biology>Genetics and Evolution>Molecular Genetics>Packaging of DNA Helix
Distinguish between heterochromatin and euchromatin. Which of the two is transcriptionally active?
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Biology>Genetics and Evolution>Molecular Genetics>Packaging of DNA Helix
Nucleosome core is made up of
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Biology>Genetics and Evolution>Molecular Genetics>Packaging of DNA Helix
What is the function of histones in DNA packaging? What is the net electric charge on histones?
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Biology>Genetics and Evolution>Molecular Genetics>Packaging of DNA Helix
The bacterial genome contains
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Biology>Genetics and Evolution>Molecular Genetics>Packaging of DNA Helix
An octamer of 8 histones complexed with DNA forms
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Biology>Genetics and Evolution>Molecular Genetics>Packaging of DNA Helix
Histone proteins are
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Biology>Genetics and Evolution>Molecular Genetics>Packaging of DNA Helix

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What is this diagram alongside representing?

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Biology>Genetics and Evolution>Molecular Genetics>Packaging of DNA Helix
 What are histones? What are their functions?
 
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Biology>Genetics and Evolution>Molecular Genetics>Packaging of DNA Helix
Genes are packed into a bacterial chromosome by
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Biology>Genetics and Evolution>Molecular Genetics>Packaging of DNA Helix
In prokaryotes, the genetic material is
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Biology>Genetics and Evolution>Molecular Genetics>Packaging of DNA Helix
Linker-DNA is attached to
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Biology>Genetics and Evolution>Molecular Genetics>Packaging of DNA Helix
The length of DNA molecule greatly exceeds the dimensions of the nucleus in eukaryotic cells. How is this DNA accommodated?
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Biology>Genetics and Evolution>Molecular Genetics>Packaging of DNA Helix
In one nucleosome, which one of the following histone molecule is NOT double?
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Biology>Genetics and Evolution>Molecular Genetics>Packaging of DNA Helix
The net electric charge on DNA and histones is