BIO NMDCAT Lamarckism

nmdcat.online July 14, 2026

If a human loses an arm in an accident, Lamarckian theory predicts that their children would:

A. Be born with only one arm.

✓

B. Be born with both arms, but one would be slightly weaker.

C. Be born with normal limbs because accidental mutilations are exempt from the laws of nature.

D. Be born with exceptionally strong arms to compensate.

📝 Explanation

Strictly applied, Lamarck's inheritance of acquired characters suggests that any physical change, including a lost limb, would be passed down (though Lamarckians later tried to exclude random accidents).

📖 Additional Information

Be born with only one arm.
Be born with both arms, but one would be slightly weaker.
Be born with normal limbs because accidental mutilations are exempt from the laws of nature.
Be born with exceptionally strong arms to compensate.

Strictly applied, Lamarck's inheritance of acquired characters suggests that any physical change, including a lost limb, would be passed down (though Lamarckians later tried to exclude random accidents).

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