The reason that lack of vitamin B₁₂ causes megaloblastic changes is that vitamin B₁₂: A) Is needed for the formation of nucleotide bases B) Is needed for the conversion of methionine to SAM C) Initiates mitosis D) Is needed for synthesis of intrinsic factor

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Vitamin B₁₂ is essential for the formation of nucleotide bases, which are crucial for DNA synthesis, cell division, and normal blood cell development. Without enough vitamin B₁₂, the maturation of red blood cells is disrupted, leading to megaloblastic changes.

The Reason That Lack of Vitamin B12 Causes Megaloblastic Changes

The Reason That Lack of Vitamin B₁₂ Causes Megaloblastic Changes