10 Questions
Which of the following is relevant for ribosomal attachment of specific sequence in bacteria?
Shine Dalgarno sequence
Which of the following describes the A form of DNA structures?
Right-handed helix with 11 base pairs per turn
DNA gyrase and topoisomerase IV are the targets of anti-bacterial drugs. What are type I and II topoisomerases the target of in humans?
Anti-tumor agents
A nucleosome core plus H1 is known as a:
Chromatosome
What protects the ends of linear chromosomal DNA from degradation and gradual shortening?
Telomeres
What is the main target of type I and II topoisomerases in humans?
anti-tumor agents in humans
A nucleosome core plus H1 is known as a:
Chromatosome
What protects the ends of the linear chromosomal DNA from degradation and gradual shortening?
Telomeres
Which of these structures is the smallest unit of chromatin organization?
Nucleosome
Which enzyme is involved in cutting DNA during processes such as DNA repair?
Endonucleases
Study Notes
Ribosomal Attachment in Bacteria
- The Shine Dalgarno sequence is relevant for ribosomal attachment of specific sequence in bacteria.
DNA Structure
- A form of DNA has specific characteristics, including all of the above features.
Targets of Anti-Bacterial Drugs
- DNA gyrase and topoisomerase IV are targets of anti-bacterial drugs in bacteria.
Targets of Anti-Tumor Agents
- Type I and II topoisomerase are targets of anti-tumor agents in humans.
Nucleosome Structure
- A chromatosome is a nucleosome core plus H1.
Telomeres
- Telomeres protect the ends of linear chromosomal DNA from degradation and gradual shortening.
Types of Targets
- Type I and II are targets of anti-tumor agents in humans.
Nucleosome Structure
- A nucleosome core plus H1 is known as a chromatosome.
Chromosomal DNA Protection
- The ends of near chromosomal DNA are protected from degradation and gradual shortening by telomeres.
- Telomeres protect DNA from degradation by endonucleases and exonucleases.
Test your knowledge of molecular biology concepts, including DNA structure, gene expression, and enzymes. Answer questions on DNA gyrase, topoisomerase IV, nucleosomes, and more.
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