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BIO NMDCAT Lamarckism
nmdcat.online July 14, 2026

August Weismann’s “Germplasm Theory” distinguished between somatoplasm and germplasm. According to this theory, why are acquired characters not inherited?

A. Somatoplasm lacks the cellular machinery to produce proteins.
B. Germplasm is structurally isolated from environmental changes affecting the somatoplasm.
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C. Changes in germplasm are automatically corrected by somatoplasmic feedback.
D. Somatic cells do not undergo mitosis after embryonic development.

📝 Explanation

Weismann's Germplasm Theory states that only changes in the germ cells (germplasm) are transmitted to offspring, while somatic cells (somatoplasm) do not pass genetic info to the next generation.

📖 Additional Information

  • Somatoplasm lacks the cellular machinery to produce proteins.
  • Germplasm is structurally isolated from environmental changes affecting the somatoplasm.
  • Changes in germplasm are automatically corrected by somatoplasmic feedback.
  • Somatic cells do not undergo mitosis after embryonic development.

Weismann's Germplasm Theory states that only changes in the germ cells (germplasm) are transmitted to offspring, while somatic cells (somatoplasm) do not pass genetic info to the next generation.

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