Super 20 Sample Paper Biology Class 12

About Super 20 Sample Paper Biology Class 12

Super 20 Biology Sample Paper for class 12 is designed in accordance with the pattern specified by the CBSE for the Examination. This book consists of 20 Solved Different types of questions. These papers give you an idea about how your real Board Examination Question Paper will look in terms of difficulty level, marks distribution, sections, number & type of questions, time and duration.

Why to Practice Super 20 Biology Sample Paper?

Super 20 Biology Sample Papers help you to get into the real exam-type feeling. As this question paper is exactly similar to the CBSE sample papers, you will find it very useful to analyze how much time you need to answer each question, what should be your writing strategy and how to finish it in given time. The more you practice, the more efficiency level you achieve. It matters a lot. Most of the time, you know the answers but you miss it only because of bad time management.

Students are advised to solve all these Sample Papers and refer their answers to the Marking Scheme to assess their level of preparation for CBSE Board Examination. All these questions are very important for forthcoming CBSE Board Examination.

Some Questions from Super 20 Sample Paper Biology Class 12

  1. What is the major difference you observe in the offsprings produced by asexual reproduction and in the progeny produced by sexual reproduction? (1)

  2. Are the thorn of bougainvillea and tendril of Cucurbita homologus or analogous? What type of evolution has brought such similarity in them? (1)

  3. The flower of brinjal is referred to as chasmogamous while that of beans is cleistogamous. How are they different from each other? (2)

  4. A plant of Antirrhinum majus with red flowers was crossed with another plant of the same species with white flowers. The plant of the F1 generation bore pink flowers. Explain the pattern of inheritance with the help of a cross. (2)

  5. Why are biogas plant more suitable and advantageous in rural area? (3)

  6. Indian government had taken several measures to control the vehicular air pollution in Delhi and other cities of India. Enlist any three of them. (3)

  7. Neeta, a Class Xth student was selected by her teacher for the debate competition to represent her school. She went home happily and told her mother about the same. Her mother denied her permission to participate as the topic for the debate was on AIDS/HIV. Neeta had a very clean argument with her mother upon this. What according to you Neeta must have said to her mother to impress her to allow her to participate in the competition? (4)

  8. A single mutant allele is responsible for the abnormal formation of haemoglobin (i.e. Hbs). If it is present in a homozygous state (HbsHbs), son develops a sickle cell anemia while shows few symptoms if it is found in a heterozygous state (HbAHbs). On the basis of the above situation, work out a cross supposing a condition in which a woman’s mother homozygous for allele marries a male who is heterozygous for the allele. Indicate the probability of having a normal or a diseased child for each of her pregnancy. (5)