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Class 12 Biology Practice Test: Molecular Basis of Inheritance - Packaging of DNA Helix
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Class 12 Biology Practice Test: Molecular Basis of Inheritance - Packaging of DNA Helix
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12 Questions

1. How many nucleosomes are present in a mammalian cell?
2. What is the typical distance between two base pairs in nm?
3. What is the length of the DNA double helix, if the total number of bp (base pair) is 6.6 x 109?
4. The DNA helical structure is linked to which type of histone protein in the following diagram?
The DNA helical structure is linked to H1 histones type of histone protein
5. What are the thread-like stained structures present in the nucleus known as?
6. What is the structure present inside the nucleus known as?
Lysosome is the structure present inside the nucleus in form of small circular structures
7. How many bp are present in a typical nucleosome?
8. The DNA of the E. coli is scattered throughout the cell.
9. Which of the following chromatins are said to be transcriptionally active and inactive respectively?
10. When the negatively charged DNA combines with the positively charged histone octamer, which of the following is formed?
11. What are the additional set of proteins which are required for the packaging of chromatin at the higher levels known as?
12. What are the set of positively charged basic proteins called as?

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