Tanvi tried to match the phases of menstrual cycle with the number of days as given in the table below:

ICSE Class 10 Biology PYQ · 2026 Specimen · Section A

1(xiv)1 Mark · 2026 · Section A · 2026 Specimen

Tanvi tried to match the phases of menstrual cycle with the number of days as given in the table below:

PHASEDAYS
P – Follicular PhaseDay 5 – 12
Q – Luteal PhaseDay 15 – 28
R – Menstrual PhaseDay 3 – 5
S – Ovulatory PhaseDay 13 or 14

Identify the correct sequence:

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R, P, S, Q

Reason

R – Menstrual Phase: Day 1 to about Day 5.
P – Follicular Phase: After menstruation, roughly Day 5 to Day 12.
S – Ovulatory Phase: Around Day 13 or 14 (when ovulation occurs).
Q – Luteal Phase: After ovulation, Day 15 to Day 28.

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