Menstrual cycle is controlled by:
- Enzymes
- Vitamins
- Minerals
- Hormones
Show answer and explanation
Answer: D. Hormones
The menstrual cycle is regulated by hormones — GnRH, FSH, LH, oestrogen and progesterone — acting in a coordinated feedback loop.
FSC Biology: Reproduction, questions with answers
Practise 36 real Federal Board questions on Reproduction from 2023 to 2026. See the answer and explanation as soon as you answer.
36real questions
12multiple choice
5exam sessions
About Reproduction in FSC Biology
Reproduction is one of the 15 main chapters in our Federal Board FSC Biology question bank (11th and 12th class), and about 7% of its real questions come from it. Tayyari Karo has 36 real questions on this chapter from 2023 to 2026; 12 are multiple choice and marked instantly, and the rest are short and long questions with a model answer. By difficulty: 32 medium, 3 easy, 1 hard.
Work through the questions below, then open the explanation for each one. Redo the ones you missed a few days later.
Try 8 real questions
These are real past-paper questions. Think of your answer first, then open the explanation.
The main function of progesterone in human female reproductive system is:
- Ovulation
- Follicle development
- Endometrium development
- Implantation of embryo
Show answer and explanation
Answer: D. Implantation of embryo
Progesterone's key role is to maintain and prepare the endometrium so that a fertilised egg can implant and pregnancy can be sustained; ovulation and follicle development are driven mainly by LH/FSH and estrogen.
In lumen of seminiferous tubules liquid medium, nourishments and protection to sperms is provided by:
- Sertoli cells
- Germinal epithelium
- Interstitial cells
- Seminal vesicles
Show answer and explanation
Answer: A. Sertoli cells
Sertoli (nurse) cells line the seminiferous tubules and nourish, support and protect developing sperm cells.
The function of human chorionic gonadotropin hCG is:
- Stimulates the uterus to secrete estrogen
- Maintain corpus luteum to secrete progesterone
- Stimulates placenta to secrete progesterone
- Stimulates hypothalamus to secrete hormones
Show answer and explanation
Answer: B. Maintain corpus luteum to secrete progesterone
hCG, secreted by the early embryo/placenta, maintains the corpus luteum so it keeps secreting progesterone to sustain the pregnancy.
Which hormone is responsible for the initiation of labour in humans?
- Prolactin
- Oxytocin
- Progesterone
- Estrogen
Show answer and explanation
Answer: B. Oxytocin
Oxytocin from the posterior pituitary stimulates strong rhythmic uterine contractions that initiate and drive labour.
Which of the following hormones is secreted in the intricate web of tissue if blastocyst is successfully implanted in the wall of uterus?
- hCG
- Corticosteroid
- LH
- Progesterone
Show answer and explanation
Answer: A. hCG
Successful implantation of the blastocyst triggers the developing trophoblast/placenta to secrete human chorionic gonadotropin (hCG), which maintains the corpus luteum and pregnancy.
Name three hormones of male reproductive system and write role of each hormone.
Show model answer
(1) Testosterone — secreted by Leydig cells; stimulates spermatogenesis and development of male secondary sexual characteristics.
(2) FSH (Follicle Stimulating Hormone) — acts on Sertoli cells to support and stimulate sperm production.
(3) LH (Luteinizing Hormone) — stimulates Leydig cells to secrete testosterone.
Justify why Rh incompatibility could be a danger to the developing fetus and mother.
Show model answer
Rh incompatibility occurs when an Rh-negative mother carries an Rh-positive fetus (inherited from an Rh-positive father). During delivery (or any event causing fetal-maternal blood mixing), some fetal Rh-positive red blood cells enter the mother's circulation. Since her immune system recognises the Rh antigen as foreign, she produces anti-Rh antibodies. …
The full model answer is in the app.
Sessions with Reproduction questions
| Session | Questions |
|---|---|
| 2026 Annual | 3 |
| 2025 1st Annual | 11 |
| 2025 2nd Annual | 9 |
| 2024 Annual | 7 |
| 2023 Annual | 6 |
Common questions
What does the Reproduction chapter cover on this page?
36 real Federal Board (FBISE) Biology questions on Reproduction from 2023 to 2026, for 11th and 12th class. Each one shows the session it came from.
Are the answers official?
No. We could not find an official FBISE marking scheme for these papers, so the answers and explanations are written by Tayyari Karo for practice. Check anything important with your teacher or textbook.
Is it free?
You can start free with no signup. A small set of papers per subject is free, and Premium unlocks the full question bank.