JAC Class 12 Biology Question Paper 2019 with Solution

About this paper

This is the Jharkhand Academic Council (JAC) Class 12 Biology paper from the 2019 board examination, with an answer written under every question. It is split into a Botany part and a Zoology part, and each follows the same four groups: ten multiple-choice questions, three very short answers, three short answers and two long answers. The Zoology part ends with a five-mark match-the-columns question. Because the answers are short and to the point, the paper is useful for judging how much to write for a two-, three- or five-mark question.

Exam

JAC Class 12

Subject

Biology

Year

2019

Pages

3

Answers included

Yes

Paper pattern

• Group A

  10 marks

  10 multiple-choice questions, one mark each, in each part

• Group B

  6 marks

  3 very short answer questions, two marks each, in each part

• Group C

  9 marks

  3 short answer questions, three marks each, in each part

• Group D

  10 marks

  2 long answer questions, five marks each, in each part

• Match the columns

  5 marks

  5 pairs at the end of the Zoology part, one mark each

Topics covered

• Reproduction in flowering plants
• Seed dormancy
• Plant breeding
• Principles of inheritance
• Molecular basis of inheritance
• Biotechnology and genetic engineering
• Evolution and natural selection
• Human reproduction and oogenesis
• Human health and disease
• Population growth and ecological succession
• Environmental issues

Questions from this paper

1. Why is the process of fertilisation in angiosperms referred to as double fertilisation?
2. What do you understand by seed dormancy? What are the natural ways of breaking it?
3. List four applications of genetically modified plants.
4. What is the Hardy–Weinberg equilibrium? Write the equation and name the factors affecting it.
5. Describe the process of oogenesis with a suitable diagram.
6. Which antibody is found in abundance in colostrum (mother's milk)?