Thymine is used in DNA despite the fact that it is energetically more expensive to synthesize than uracil because

A) spontaneous deamination reactions convert cytosine to uracil at a fairly high rate.
B) uracil is more sensitive to ultraviolet (UV) damage.
C) uracil is more susceptible to depurination.
D) uracil can only bind with ribose, not deoxyribose.
E) thymine is less likely to undergo spontaneous deamination than uracil.


Answer: A

Biology & Microbiology

You might also like to view...

Mycorrhizal fungi can either be intracellular or extracellular.

Answer the following statement true (T) or false (F)

Biology & Microbiology

White blood cells use ____ to get rid of foreign particles in the blood

a. simple diffusion b. bulk flow c. osmosis d. phagocytosis e. facilitated diffusion

Biology & Microbiology

Describe the colonial theory of animal origins

What will be an ideal response?

Biology & Microbiology

Atherosclerosis is now known to be a disease of

inflammation. Which of the following oral bacteria can also be involved in this disorder? a. Porphyromonas gingivalis b. Streptococcus mutans c. Lactobacillus spp d. Staphylococcus spp e. all of these

Biology & Microbiology