CBSE Class 12 Biology Question Paper 2016 Set 3

CBSE Class 12 Biology Question Paper 2016 Set 3. The Students can download the last year question papers using the link below. Free download of examination question papers with solutions. Last 10 year question papers should be practised to get better marks in examinations.

Biology

SECTION - A

1.Mention two advantages for preferring  CNG over diesel as an automobile fuel.        

2.What are transgenic animals.  Give an example.

3.Write  the probable  differences  in  eating  habits  of Homo  habilis  and Homo erectus.

4.Mention the role of 'genetic mother' in MOET.       .

5.A male honeybee has 16 chromosomes whereas its female has 32 chromosomes. Give one reason.

SECTION - B

6. Name  a free-living  and  a symbiotic  bacterium  that  serve as  bio-fertilizer. Why are they so  called ?

7 Name the cells HIV (Human Immunodeficiency Virus) gains entry into after infecting the human  body. explain the events that occur in these cells.

8.Explain the relationship between CFC's and  zone in the stratosphere.

                                            OR

Why are sacred groves highly protected ?

9.Following are the features of genetic codes.  What does each one indicate ? Stop codon; Unambiguous codon; Degenerate codon; Universal codon.

10.Out of many  papaya plants growing in your garden, only a few bear fruits.Give reason.

Please click below link CBSE Class 12 Biology Question Paper 2016 Set 3