Module 9 Part 2

•loss of one of the nitrogenous bases (usually a purine) in an intact double-helical DNA molecule.

Tags

NGSS.HS-LS3-2

amino group in cytosine converted to uracil, adenine converted to hypoxanthine.

this is an example of

Tags

NGSS.HS-LS3-2

this is an example of

Tags

NGSS.HS-LS3-2

NGSS.HS-LS4-2

Some reactive chemicals may split the bond between purine and ribose sugar, resulting in the loss of a

DNA may suffer _________ _______ by the by-products of normal cellular processes and exposure to high-energy radiation

Tags

NGSS.HS-LS1-1

Select all that are true: Examples of by-products from cellular respiration that can cause oxidative damage.

• Superoxides (O2-)

• Hydroxyl Radicals (OH)

• Hydrogen Peroxide (H2O2)

• Dihydrogen Oxide (H2O)

the last enzyme of the electron transport chain in mitochondria.

Tags

NGSS.HS-LS1-7

Due to damage from an Oxygen Free Radical, the Guanine base pairs to _______ instead of Cytosine.

• Adenine

• Guanine

• Uracil

• Thymine

Tags

NGSS.HS-LS3-2

The mitochondrial enzyme __________ ________ neutralizes most of the superoxide radicals

Tags

NGSS.HS-LS2-5