CBSE 12th Biology

Last 5 year solutions (2011 - 2015)

Prepare for CBSE class 12 Biologyboard paper with the help of previous years (2011-2015) solved question papers.
18 video solutions

CBSE Board Papers Class 12 - 2014 - Biology - Question 21
by added on Mon Feb 16 11:14:03 UTC 2015 1029 views
Question - Why is pedigree analysis done in the study of human genetics? State the conclusions that can be drawn from it. Vedantu - Your Personal Teacher Online - Get an clear edge over other students by constant revision of important topics with an awesome teacher. - Get your doubts and questions resolved instantly by booking an instant live session - Prepare for competitive exams with our exam courses and achieve your goal - Skipped a topic in tuitions? Learn it on Vedantu by taking our topic courses

 

CBSE Board Papers Class 12 - 2014 - Biology - Question 25
by added on Mon Feb 16 05:53:43 UTC 2015 293 views
Question - Name and describe ‘the technique that helps in separating the DNA fragments formed by the use of restriction endonuclease. Vedantu - Your Personal Teacher Online - Get an clear edge over other students by constant revision of important topics with an awesome teacher. - Get your doubts and questions resolved instantly by booking an instant live session - Prepare for competitive exams with our exam courses and achieve your goal - Skipped a topic in tuitions? Learn it on Vedantu by taking our topic courses

 

CBSE Board Papers Class 12 - 2014 - Biology - Question 30 a
by added on Mon Feb 16 05:46:31 UTC 2015 186 views
Question - With advancements in genetics, molecular biology and tissue culture, new traits have been incorporated into crop plants. Explain the main steps in breeding a new genetic variety of a crop. Vedantu - Your Personal Teacher Online - Get an clear edge over other students by constant revision of important topics with an awesome teacher. - Get your doubts and questions resolved instantly by booking an instant live session - Prepare for competitive exams with our exam courses and achieve your goal - Skipped a topic in tuitions? Learn it on Vedantu by taking our topic courses

 

CBSE Board Papers Class 12 - 2014 - Biology - Question 29 a
by added on Mon Feb 16 05:47:29 UTC 2015 171 views
Question - (a) Describe the various steps of Griffith's experiment that led to the conclusion of the 'Transforming Principle'. (b) How did the chemical nature of the 'Transforming Principle' get established? Vedantu - Your Personal Teacher Online - Get an clear edge over other students by constant revision of important topics with an awesome teacher. - Get your doubts and questions resolved instantly by booking an instant live session - Prepare for competitive exams with our exam courses and achieve your goal - Skipped a topic in tuitions? Learn it on Vedantu by taking our topic courses

 

CBSE Board Papers Class 12 - 2012 - Biology - Question 23
by added on Mon Mar 02 12:02:57 UTC 2015 162 views
Question - How is the amplification of a gene sample of interest carried out using Polymerase Chain Reaction (PCR)? Vedantu - Your Personal Teacher Online - Get an clear edge over other students by constant revision of important topics with an awesome teacher. - Get your doubts and questions resolved instantly by booking an instant live session - Prepare for competitive exams with our exam courses and achieve your goal - Skipped a topic in tuitions? Learn it on Vedantu by taking our topic courses

 

CBSE Board Papers Class 12 - 2013 - Biology - Question 28 b (OR (b))
by added on Mon Mar 02 14:14:30 UTC 2015 160 views
Question - Explain the role of pituitary and the ovarian hormones in menstrual cycle in human females. Vedantu - Your Personal Teacher Online - Get an clear edge over other students by constant revision of important topics with an awesome teacher. - Get your doubts and questions resolved instantly by booking an instant live session - Prepare for competitive exams with our exam courses and achieve your goal - Skipped a topic in tuitions? Learn it on Vedantu by taking our topic courses

 

CBSE Board Papers Class 12 - 2014 - Biology - Question 21
by added on Mon Feb 16 05:54:24 UTC 2015 157 views
Question - Why is pedigree analysis done in the study of human genetics? State the conclusions that can be drawn from it. Vedantu - Your Personal Teacher Online - Get an clear edge over other students by constant revision of important topics with an awesome teacher. - Get your doubts and questions resolved instantly by booking an instant live session - Prepare for competitive exams with our exam courses and achieve your goal - Skipped a topic in tuitions? Learn it on Vedantu by taking our topic courses

 

CBSE Board Papers Class 12 - 2013 - Biology - Question 29 a
by added on Mon Mar 02 14:13:51 UTC 2015 141 views
Question - Describe the asexual and sexual phases of life cycle of malaria in humans. Vedantu - Your Personal Teacher Online - Get an clear edge over other students by constant revision of important topics with an awesome teacher. - Get your doubts and questions resolved instantly by booking an instant live session - Prepare for competitive exams with our exam courses and achieve your goal - Skipped a topic in tuitions? Learn it on Vedantu by taking our topic courses

 

CBSE Board Papers Class 12 - 2012 - Biology - Question 22
by added on Mon Mar 02 12:06:55 UTC 2015 130 views
Question - Explain the function of each of the following: i. Coleorhiza ii. Umbilical cord iii. Germ pores Vedantu - Your Personal Teacher Online - Get an clear edge over other students by constant revision of important topics with an awesome teacher. - Get your doubts and questions resolved instantly by booking an instant live session - Prepare for competitive exams with our exam courses and achieve your goal - Skipped a topic in tuitions? Learn it on Vedantu by taking our topic courses

 

CBSE Board Papers Class 12 - 2012 - Biology - Question 25 a
by added on Mon Mar 02 12:03:26 UTC 2015 125 views
Question - List the salient features of double helix structure of DNA. Vedantu - Your Personal Teacher Online - Get an clear edge over other students by constant revision of important topics with an awesome teacher. - Get your doubts and questions resolved instantly by booking an instant live session - Prepare for competitive exams with our exam courses and achieve your goal - Skipped a topic in tuitions? Learn it on Vedantu by taking our topic courses

 

CBSE Board Papers Class 12 - 2014 - Biology - Question 29 b
by added on Mon Feb 16 05:48:06 UTC 2015 113 views
Question - Describe how the lac operon operates, both in the presence and absence of an inducer in E.coli. Vedantu - Your Personal Teacher Online - Get an clear edge over other students by constant revision of important topics with an awesome teacher. - Get your doubts and questions resolved instantly by booking an instant live session - Prepare for competitive exams with our exam courses and achieve your goal - Skipped a topic in tuitions? Learn it on Vedantu by taking our topic courses

 

CBSE Board Papers Class 12 - 2013 - Biology - Question 23
by added on Mon Mar 02 14:16:17 UTC 2015 92 views
Question - Differentiate between inbreeding and outbreeding in cattle. State one advantage and one disadvantage for each one of them. Vedantu - Your Personal Teacher Online - Get an clear edge over other students by constant revision of important topics with an awesome teacher. - Get your doubts and questions resolved instantly by booking an instant live session - Prepare for competitive exams with our exam courses and achieve your goal - Skipped a topic in tuitions? Learn it on Vedantu by taking our topic courses

 

CBSE Board Papers Class 12 - 2013 - Biology - Question 21
by added on Mon Mar 02 14:17:04 UTC 2015 87 views
Question - (a) Why is human ABO blood group gene considered a good example of multiple alleles? (b) Work out a cross up to F1 generation only, between a mother with blood group A (Homozygous) and the father with blood group B (Homozygous). Explain the pattern of inheritance exhibited. Vedantu - Your Personal Teacher Online - Get an clear edge over other students by constant revision of important topics with an awesome teacher. - Get your doubts and questions resolved instantly by booking an instant live session - Prepare for competitive exams with our exam courses and achieve your goal - Skipped a topic in tuitions? Learn it on Vedantu by taking our topic courses

 

CBSE Board Papers Class 12 - 2012 - Biology - Question 29 (OR (a))
by added on Mon Mar 02 11:32:57 UTC 2015 86 views
Question - Why is fertilization in an angiosperm referred to as double fertilization? Mention the ploidy of the cells involved. Vedantu - Your Personal Teacher Online - Get an clear edge over other students by constant revision of important topics with an awesome teacher. - Get your doubts and questions resolved instantly by booking an instant live session - Prepare for competitive exams with our exam courses and achieve your goal - Skipped a topic in tuitions? Learn it on Vedantu by taking our topic courses

 

CBSE Board Papers Class 12 - 2013 - Biology - Question 30 (a, b)
by added on Mon Mar 02 14:13:04 UTC 2015 83 views
Question - (a) What is Thalassemia? (b) How would you counsel the family not to blame the mother for delivering a child suffering from this disease? Explain. Vedantu - Your Personal Teacher Online - Get an clear edge over other students by constant revision of important topics with an awesome teacher. - Get your doubts and questions resolved instantly by booking an instant live session - Prepare for competitive exams with our exam courses and achieve your goal - Skipped a topic in tuitions? Learn it on Vedantu by taking our topic courses

 

CBSE Board Papers Class 12 - 2012 - Biology - Question 21
by added on Mon Mar 02 12:08:40 UTC 2015 80 views
Question - What is the programme called that is involved in improving success rate of production of desired hybrid and herd size of cattle? Explain the method used for carrying this programme for cows? Vedantu - Your Personal Teacher Online - Get an clear edge over other students by constant revision of important topics with an awesome teacher. - Get your doubts and questions resolved instantly by booking an instant live session - Prepare for competitive exams with our exam courses and achieve your goal - Skipped a topic in tuitions? Learn it on Vedantu by taking our topic courses

 

CBSE Board Papers Class 12 - 2013 - Biology - Question 28 a (a)
by added on Mon Mar 02 14:15:26 UTC 2015 78 views
Question - Draw a diagrammatic sectional view of a mature anatrop following parts in it: (i) that develops into a seed coat. (ii) that develops into an embryo after (iii) that develops into an endosperm in an albuminous seed. (iv) through which the pollen tube gains entry into the embryo sac. (v) that attaches the ovule to the placenta. Vedantu - Your Personal Teacher Online - Get an clear edge over other students by constant revision of important topics with an awesome teacher. - Get your doubts and questions resolved instantly by booking an instant live session - Prepare for competitive exams with our exam courses and achieve your goal - Skipped a topic in tuitions? Learn it on Vedantu by taking our topic courses

 

CBSE Board Papers Class 12 - 2012 - Biology - Question 27
by added on Mon Mar 02 12:01:13 UTC 2015 75 views
Question - (a) Tobacco plants are damaged severely when infested with Meloidegyne incognitia. Name and explain the strategy that is adopted to stop this infestation. (b) Name the vector used for introducing the nematode specific gene in tobacco plant. Vedantu - Your Personal Teacher Online - Get an clear edge over other students by constant revision of important topics with an awesome teacher. - Get your doubts and questions resolved instantly by booking an instant live session - Prepare for competitive exams with our exam courses and achieve your goal - Skipped a topic in tuitions? Learn it on Vedantu by taking our topic courses

 
Any Queries? Don't hesitate to call us @
Oops!
Message
Any Queries? Don't hesitate to call us @