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Uracil replaces thymine in RNA, pairing with adenine. DNA contains thymine, not uracil. Adenine and cytosine are present in both DNA and RNA. DAT biology often includes DNA vs RNA base composition.

Any cube, regardless of subdivision, has 8 corners. Each corner cube has 3 painted faces. Thus answer is 8. PAT cube-counting requires recognizing invariant counts like corner = 8.

Vitamin K is essential for synthesis of clotting factors (II, VII, IX, X). Deficiency causes bleeding disorders. Vitamin A is vision-related, C for collagen synthesis, and D for calcium absorption. DAT biology emphasizes vitamin functions and deficiencies.

Volume = s³. Solve: s³ = 125 → s = 5 cm. Thus Option B. DAT QR geometry questions often test cube/sphere formulas.

Molarity M=moles soluteliters solution=0.250.50=0.50M = \frac{\text{moles solute}}{\text{liters solution}} = \frac{0.25}{0.50} = 0.50. Thus Option C. DAT QR requires quick recall of solution concentration formulas and unit matching. Option A under-divides, Option B ignores dilution, and Option D overestimates.