Biology (EM) 2020 — Class 12 Punjab Board book
Official Punjab Curriculum and Textbook Board (PCTB) Biology textbook for Class 12 (English Medium). Neeche poori kitab online parhein ya official PDF download karein — bilkul muft.
Poori kitab yahin parhein
Biology (EM) 2020 — Class 12 — neeche scroll karte jayein, aglay safhay khud aa jayein ge. Zoom bhi kar sakte hain.
Internet darkar hai — kitab official PECTAA file se load hogi
Chapter Quiz
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Is kitab ke baare mein
This is the PCTB Class 12 Biology textbook (2020, English medium), continuing the second-year syllabus with chapters 15 to 26. It runs from homeostasis and support-and-movement through coordination, reproduction and genetics, into biotechnology, evolution and ecology.
Each chapter opens with student learning outcomes and eLearn.Punjab animation references, and closes with exercises. Genetics (chapters 20-22) and biotechnology (chapter 23) are the highest-weightage chapters in the board exam.
Aham mozuaat
Homeostasis
Page 1
Support and Movement
Page 35
Coordination and Control
Page 79
Reproduction
Page 131
Growth and Development
Page 159
Chromosomes and DNA
Page 187
Cell Cycle
Page 228
Variation and Genetics
Page 248
Biotechnology
Page 309
Evolution
Page 341
Ecosystem
Page 362
Some Major Ecosystem
Page 384
Ustad ka mashwara
Genetics (ch 20-22) mein dihybrid cross aur DNA replication ke diagrams practice karayein — ye long questions mein lazmi hain. Biotechnology ke applications (insulin, PCR) aur coordination chapter ke hormones short questions mein aate hain. Har chapter ke SLOs se past paper ke sawalat match karwayein.
— Rehman Ahmad Chaudhary, Head Teacher, GPS 117 DB(BJ), Yazman
Aksar pooche gaye sawalat
How many chapters are in this book?
12 chapters, numbered 15 to 26 (the Class 12 portion of the Biology syllabus).
Which chapters are most important for exams?
Chromosomes and DNA, Cell Cycle, Variation and Genetics, and Biotechnology — genetics is the core of the paper.
What does the Biotechnology chapter cover?
Chapter 23 — genetic engineering, recombinant DNA, PCR and its applications.
Is ecology included?
Yes — chapters 25 and 26 cover ecosystems, ecological succession and major Pakistani ecosystems.
Class 12 ki mazeed kitabein
Disclaimer
Ye kitab Punjab Curriculum and Textbook Board (PCTB) ki official publication hai. Download aur online reading PECTAA ki official e-books listing (pectaa.edu.pk) se faraham ki jati hai — sirf talimi maqsad ke liye. Malkiyat PCTB ki hai; is site ka koi dawa nahi.