If a Cell Has Many ROS Species,what Is the Most

question 88

Multiple Choice

If a cell has many ROS species,what is the most likely reaction with DNA?

• A) Nothing, because ROS do not react with DNA.
• B) G-C to T-A replacement
• C) O-alkylation of thymine
• D) single point excision

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Definitions:

Centromere

The region of a chromosome where the two sister chromatids are joined, crucial for chromosomal movement during cell division.

Spindle Microtubules

Protein fibers that form a spindle apparatus during cell division, playing a key role in chromosome movement and segregation.

Oncogene

A gene that has the potential to cause cancer, usually by being mutated or expressed at high levels.