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The single innermost cube is unpainted. For n=3, (n − 2)³ = 1. DAT PAT cube-counting relies on memorizing formulas for corner, edge, face, and interior cubes.

During Anaphase I, homologous chromosomes (tetrads) separate and move to opposite poles. Sister chromatids remain attached. This reductional division halves the chromosome number, distinguishing meiosis from mitosis. Anaphase II (Option D) separates sister chromatids, similar to mitosis. Prophase I (Option A) involves crossing over, and Metaphase I (Option B) is alignment at the metaphase plate. On the DAT, recalling distinctions between meiosis I (homolog separation) and meiosis II (chromatid separation) is critical for cell biology questions.

H₂O forms strong hydrogen bonds, giving it a much higher boiling point compared to CH₄, CO₂, or N₂, which rely on weak London dispersion forces. DAT chemistry often tests IMF (intermolecular force) comparisons.

Area = length × width = 12 × 5 = 60. Thus Option C. Simple geometry questions are quick points on DAT QR if formula recall is strong.

A cube has 8 vertices (corners). It also has 6 faces and 12 edges. PAT geometry drills frequently test these cube properties.