Ijmb Model Questions Vol1 2025 Biology Question 9

Practice essay / theory question 9 from the 2025 Ijmb Model Questions Vol1 Biology examination. This question covers Human Reproduction, Hormonal Regulation of Menstrual Cycle, Assisted Reproductive Technology .

Ijmb Model Questions Vol1 2025 Biology Essay / Theory
Topics: Human Reproduction Hormonal Regulation of Menstrual Cycle Assisted Reproductive Technology
Question 9 IJMB_MODEL_QUESTIONS_VOL1 • 2025 • BIOLOGY • essay

A 22‑year‑old woman attends the reproductive health clinic complaining of irregular menstrual cycles for the past six months and difficulty conceiving. She reports cycles ranging from 35 to 55 days with occasional spotting. Her medical history is unremarkable.

Question Parts

( a )
Describe the normal hormonal events of the menstrual cycle, indicating clearly the phase in which ovulation occurs.
( b )
Explain how a disruption in the hypothalamic‑pituitary‑ovarian (HPO) axis could produce the menstrual pattern described, citing at least two possible endocrine disorders.
( c )
The couple is advised to undergo controlled ovarian hyperstimulation (COH) followed by in‑vitro fertilisation (IVF). (i) Outline the physiological basis for using gonadotropin‑releasing hormone (GnRH) agonists in COH. (ii) Discuss one major risk associated with this protocol.

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About This Question

This is Ijmb Model Questions Vol1 2025 Biology Question 9. It is one of the essay questions from the 2025 Ijmb Model Questions Vol1 Biology examination.

The question covers Human Reproduction, Hormonal Regulation of Menstrual Cycle, Assisted Reproductive Technology .

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