CBSE Class 12 Biology Sample Papers 2015 Set F

Read and download PDF of CBSE Class 12 Biology Sample Papers 2015 Set F designed as per the latest curriculum and examination pattern for Class 12 issued by CBSE, NCERT and KVS. The latest Class 12 Biology Sample Papers have been provided with solutions so that the students can solve these practice papers and then compare their answers. This will help them to identify mistakes and improvement areas in Biology Class 12 which they need to study more to get better marks in Class 12 exams. After solving these guess papers also refer to solved Class 12 Biology Question Papers available on our website to build strong understanding of the subject

Sample Paper for Class 12 Biology Pdf

Students can refer to the below Class 12 Biology Sample Paper designed to help students understand the pattern of questions that will be asked in Class 12 exams. Please download CBSE Class 12 Biology Sample Papers 2015 Set F

Biology Class 12 Sample Paper

SECTION A

1. DDT was known to be highly effective insecticide in the past . Why did it not wipe out all mosquito population ?

2. It is observed that male gametes are produced in large number in comparison to female gametes in mammals . Why ?

3. If a double standard DNA has 30% of cytosine , calculate the percentage of adenine in the DNA ?

4. What is the aim of JEM ?

5. Arrange the following terms in a correct developmental sequence ---

Pollen grain ,sporogenous tissue , microspore tetroid , pollen mother cell .male gametes ?

6. Mention two with drawl symptoms of drug abuse ?

7. In 1977 , an American company got patent rights on Basmati rice without compensation though it was native to India . What term we use to refer this act of the company ?

8. Expand GEAC . Write its role in India ..

SECTION B
 
9. Give four reasons for sequencing human genome .
 
10. An experimental technique allows purified mRNA from a eukaryotic cell to be hybridized (paired up ) with the DNA which codes for it under electron microscope . The following structure is observed .. .
CBSE Biotechnology Sample paper II 2007-08
Q No. 7 page 232
(i) Indicate DNA and mRNA strands in the picture A and B
(ii) If prokaryotic mRNA was hybridized with prokaryotic DNA , would the structure alter ?. How ?
 
11. Write four characteristic features of a vector .
 
12. Name the ecologist who gave the rivet popper hypothesis . What e message he wants to convey through the hypothesis .?
 
13. During last few decades , most products are being sold in secure consumer-friendly packages . How are these modern packaging techniques turning into a major environmental hazard ?
Give some examples where such packaging can be easily avoided .
 
14. What is the importace of regeneration in plant tissue culture ? What are the plant hormones used to aid this process. ?
 
or
A technician in a tissue culture laboratory accidentally removed the identification tag of a petridish containing cells from a cancerous biopsy . How can he identify this petridish among other petridishes containing normal cells ?
 
15. Make a pyramid of number as well as for energy for the following data : 1 tree .100 ants, 10 small birds , 1 large bird


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CBSE Class 12 Biology Sample Papers 2015 Set F

We hope you liked the above provided CBSE Class 12 Biology Sample Papers 2015 Set F. To get an understanding of the type of questions which were asked in exams, it is important for Class 12 students to understand the way sample Paper are set by teachers. Students can download the Sample Paper for Class 12 Biology which will be coming in the exams so that you can practise them and solve all types of questions that can be asked in exams. By doing CBSE Class 12 Biology Sample Papers 2015 Set F you will understand the regular questions and MCQ questions for Class 12 Biology which are always asked. You can download CBSE Class 12 Biology Sample Paper and Class 12 Biology Question Papers in PDF. You should attempt all the last year question paper for Class 12 and Class 12 Biology MCQ Test in examination conditions at home and then compare their answers with the solutions provided by our teachers.

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