Reproductive Health

Step 1: Periodic abstinence is a natural method of birth control where couples avoid intercourse during the fertile window (days 10 to 17).
Step 2: This period is considered the ovulation window when chances of conception are highest.
Step 3: However, this method is not fully reliable as menstrual cycles can vary and ovulation days may shift.
Step 4: Hence, both Assertion and Reason are true, and Reason correctly explains Assertion.

Amniocentesis is a prenatal diagnostic technique used to detect genetic disorders, sex of the fetus, and chromosomal abnormalities.
It cannot detect infections like hepatitis.
- (A), (C), and (D) are detectable via genetic screening.
- (B) Hepatitis is a viral infection — not diagnosable through amniotic fluid analysis.

In assisted reproductive technology (ART), Artificial Insemination (AI) refers to the technique of introducing sperm into the reproductive tract of a female by artificial means.
It is commonly used in both humans and animal husbandry for fertility treatments.

Ovulation typically occurs around day 14 of a 28-day cycle.
The fertile window spans a few days before and after ovulation, i.e., roughly days 10 to 17.
Avoiding intercourse during this period is known as periodic abstinence, a natural method of contraception.