Multiple choice

Which among the following statements regarding the life cycle of roundworm Ascaris lumbricoides is incorrect?

  1. First appearance of eggs in stools is within 60–70 days.

  2. Some patients may have pulmonary symptoms or neurological disorders during migration of the larvae.

  3. Adult worms have a lifespan of 1–2 days.

  4. The eggs can survive potentially for 15 years.

  5. The eggs have a characteristic oval shape.
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Adult worms have a life-span of 1–2 years which means that individuals may be infected all their lives as worms die and new worms are acquired.

Keep practicing — related questions