Motile spermatozoa found in wet mount of vaginal secretions indicates of intercourse within the past:: (A) 3 hours, (B) 12 hours, (C) 24 hours, (D) 48 hours
Answer is B. Motile spermatozoa should be found in vagina for 6-12 hrs they are likely to be found upto 3 days later,and occasionally they are found 7 days later.