Molecular Basis of Inheritance - DNA Structure, Packaging

Grade 12 Biology — Molecular Basis of Inheritance - DNA Structure, Packaging: 25 practice questions with instant scoring and explanations.

1. DNA stands for:
2. The four nitrogenous bases in DNA are:
3. Chargaff's rule states that:
4. The double helix structure of DNA was proposed by:
5. The sugar in DNA is:
6. DNA nucleotides are connected by:
7. The two strands of DNA are held together by:
8. How many hydrogen bonds exist between Adenine and Thymine?
9. How many hydrogen bonds exist between Guanine and Cytosine?
10. The 5' end of DNA strand contains:
11. The 3' end of DNA strand contains:
12. The two DNA strands are:
13. The pitch of the DNA double helix is:
14. One complete turn of the DNA helix contains:
15. DNA packaging in eukaryotes involves:
16. A nucleosome consists of:
17. The histone octamer in a nucleosome consists of:
18. Linker DNA connects:
19. The length of linker DNA is typically:
20. Chromatin condensation from nucleosomes to chromatin fiber involves:
21. The 30-nanometer fiber in chromatin is formed by:
22. Heterochromatin is:
23. Euchromatin is:
24. DNA in prokaryotes is packaged as:
25. The total length of DNA in a human cell is approximately: