CBSE 12th Biotech Previous Year Question Papers Download PDF

CBSE 12th Board Biotechnology Previous Papers Download to prepare for exam so as to score better. The questions will give the idea of how they are actually asked in exam. Biotech Papers for class 12 CBSE are provided below for the candidates  so that all the topics which are covered can be known. Prepare for questions as are given below and so you can achieve success in the examination. CBSE Board 12th Class Biotechnology previous Papers are best source to prepare for exam.

There are 4 sections in the paper. Section 1, 2, 3, 4 are the sections with 1, 2, 3, 5 marks questions respectively. The questions are all based on the syllabus of the exam paper. Biotechnology syllabus as is designed by CBSE.

Q1: Among the biomolecules, why do proteins have maximum diversity in functions?

Q2: Give an example to demonstrate the use of SNPs in medical sciences

Q3: Given below is a table of the genome size and gene members of weed Arabidopsis Thaliana and Homo sapiens:

Organism No. of chromosomes Genome Size Predicted Genes
Arabidopsis 5 15,70,00,000 25498
Homo Sapiens 23 3,00,00,00,000 25000

What observations you make from table?

Q4: Draw a labeled diagram of an artificial seed. How are these produced and why are they useful?

Q5: Explain how the folding of enzyme chymotrypsin leads to its function as a proteolytic enzyme. Name 2 more enzymes which use the same mechanism.

Q6: With a suitable diagram, explain how RFLP Technique is useful for differentiating DNA sequences

Q7: Thalassaemic patients produce excess alpha or beta sub- units of haemoglobin leading to impaired oxygen binding capacity by their erythrocytes. How can it be determined as to which sub unit is produced in excess?

Q8: Expand NCBI. What are the possible uses of databases available in NCBI? How can tools available in these be used to retrieve and compare genetic information?

CBSE 12th Board Biotechnology previous Papers DOWNLOAD

 2010  2011 Set 1  2011 Set 2  2012  2013  2014

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