CBSE Class 12 Biology Term 1 MCQ Questions with Explanations PDF Download

As CBSE Term 1 Exam is on the way, so you must practice some good MCQ questions of Class 12 Biology to boost your preparation to score 90+% in Boards. In this post, you will get MCQ Questions of All Chapters which will come in CBSE Class 12 Biology Term 1 Board Exams.

Biology Syllabus of Term 1

UnitsTerm – IMarks
VI Reproduction: Chapter – 2, 3 and 4 15
VIIGenetics and Evolution: Chapter – 5 and 6 20
Total 35 Marks

Term – I

Unit-VI Reproduction

  • Chapter-2: Sexual Reproduction in Flowering Plants: Flower structure; development of male and female gametophytes; pollination – types, agencies and examples; outbreeding devices; pollen-pistil interaction; double fertilization; post fertilization events – development of endosperm and embryo, development of seed and formation of fruit; special modes- apomixis, parthenocarpy, polyembryony; Significance of seed dispersal and fruit formation.
  • Chapter-3: Human Reproduction: Male and female reproductive systems; microscopic anatomy of testis and ovary; gametogenesis spermatogenesis and oogenesis; menstrual cycle; fertilisation, embryo development upto blastocyst formation, implantation; pregnancy and placenta formation (elementary idea); parturition (elementary idea); lactation (elementary idea).
  • Chapter-4: Reproductive Health: Need for reproductive health and prevention of Sexually Transmitted Diseases (STDs); birth control – need and methods, contraception and medical termination of pregnancy (MTP); amniocentesis; infertility and assisted reproductive technologies – IVF, ZIFT, GIFT (elementary idea for general awareness)

Unit-VII Genetics and Evolution

  • Chapter-5: Principles of Inheritance and Variation: Heredity and variation: Mendelian inheritance; deviations from Mendelism – incomplete dominance, co-dominance, multiple alleles and inheritance of blood groups, pleiotropy;
    elementary idea of polygenic inheritance; chromosome theory of inheritance; chromosomes andgenes; Sex determination – in human being, birds and honey bee; linkage and crossing over; sex linked inheritance – haemophilia, colour blindness; Mendelian disorders in humans -thalassemia; chromosomal disorders in humans; Down’s syndrome, Turner’s and Klinefelter’s syndromes.
  • Chapter-6: Molecular Basis of Inheritance Search for genetic material and DNA as genetic material; Structure of DNA and RNA; DNA packaging; DNA replication; Central Dogma; transcription, genetic code, translation; gene expression and regulation – lac operon; Genome, Human and rice genome projects; DNA fingerprinting

MCQ Questions for Class 12 Biology Term 1

Chapter’s of Term 1 of Biology Quiz LinkExplanatory Video
Chapter 2: Sexual Reproduction in Flowering Plants Click HereClick Here
Chapter 3: Human ReproductionClick Here Click Here
Chapter 4: Reproductive HealthClick Here Click Here
Chapter 5: Principles of Inheritance and Variation Click Here Click Here
Chapter 6: Molecular Basis of Inheritance Click Here Click Here

The above MCQs for Class 12 Biology will help you to boost your scores as multiple-choice questions have been coming in your examinations. These CBSE Class 12 Biology MCQs have been developed by experienced teachers of for benefit of Class 12 students.

Detailed Syllabus of Class 12 Biology by CBSE

Books for Class 12 Biology Term 1

Strictly as per the new term-wise syllabus for Board Examinations to be held in the academic session 2021-22 for class 12 Multiple Choice Questions based on new typologies introduced by the board- Stand- Alone MCQs, MCQs based on Assertion-Reason Case-based MCQs. Include Questions from CBSE official Question Bank released in April 2021 Answer key with Explanations What are the updates in the book: Strictly as per the Term wise syllabus for Board Examinations to be held in the academic session 2021-22. Chapter-wise -Topic-wise Multiple choice questions based on the special scheme of assessment for Board Examination for Class 12th.

For further information, Subscribe Our YouTube Channel, comment below about your queries.

Leave a Reply

This site uses Akismet to reduce spam. Learn how your comment data is processed.