If you are preparing for the 10th class Biology board exam 2026, then these most repeated MCQs from the last 5 years (2020–2024) are extremely important.

These questions are selected from past papers of Lahore Board and have a high chance of appearing again. Preparing these MCQs will help you score maximum marks with smart study.

🟠 MOST REPEATED MCQs (🔥 HIGH PRIORITY)

1. Human genome was published in:

👉 2002
📌 Asked in: 2020, 2021, 2023

2. Unit of nervous system:

👉 Neuron
📌 Asked in: 2020, 2022, 2023

3. Number of bones in human body:

👉 206
📌 Asked in: 2021, 2023, 2024

4. Blood filtering organ:

👉 Kidney
📌 Asked in: 2022, 2023, 2024

5. Example of co-dominance:

👉 Blood Group AB
📌 Asked in: 2022, 2023, 2024

🟢 VERY IMPORTANT MCQs (⭐ MUST PREPARE)

6. Symbiosis in which both partners benefit:

👉 Mutualism
📌 Asked in: 2020, 2023

7. Temperature control in humans:

👉 Thermoregulation

8. First part of embryo to grow:

👉 Radicle
📌 Asked in: 2020, 2024

9. Structure that pushes air out of lungs:

👉 Diaphragm

10. Theory of natural selection:

👉 Darwin
📌 Asked in: 2022, 2023

🔵 CONCEPT BASED MCQs (💡 IMPORTANT)

Transcription vs Translation
Genotype vs Phenotype
DNA hydrogen bonds
Ecosystem basics
Food chain & producers

🔴 TRICKY MCQs (⚠️ EXAM TRAPS)

👉 Students usually make mistakes in these:

Osmoregulation vs Thermoregulation
Genotype vs Phenotype
Sedatives vs Narcotics
Producer vs Consumer

💡 These MCQs are repeatedly asked in Lahore Board exams.
If you prepare these properly, you can easily score 80%+ marks in Biology objective paper.

10th Class Biology MCQs Important Questions Lahore Board (2026 Preparation)