CBSE Class 12 Biology Sample Paper 2020 Solved Set B

Read and download PDF of CBSE Class 12 Biology Sample Paper 2020 Solved Set B 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 Paper 2020 Solved Set B

Biology Class 12 Sample Paper

CBSE Class 12 Biology Sample Paper 2020 Solved Set B. CBSE issues sample papers every year for students for Class 12 board exams. Students should solve the CBSE issued sample papers to understand the pattern of the question paper which will come in class 12 board exams this year. The sample papers have been provided with marking scheme. It’s always recommended to practice as many CBSE sample papers as possible before the board examinations. Sample papers should be always practiced in examination condition at home or school and the student should show the answers to teachers for checking or compare with the answers provided. Students can download the sample papers in pdf format free and score better marks in examinations. Refer to other links too for latest sample papers. 

SECTION A

1 The hilly areas in kerala, Karnatka and Tamil Nadu are transformed into blue stretches due to mass flowering of a plant. Name the plant.

2 The gene I that controls ABO blood grouping in human beings has three alleles IA , IBand .How many genotypes are likely to be present in human population?

Also, how many phenotypes are possibly present?

3 In case of infertile couple, the male partner can inseminate normally but the mobility of sperms is below 40 percent. Judge which kind of ART is suited in this situation to form an embryo in the laboratory, without involving a donor?

4 Why hnRNA is required to undergo splicing? 

5 “Sweet potatoes tubers and potato tubers are the result of convergent evolution”. Justify the statement.

SECTION B

6 (a) If one can induce parthenocarpy through application of growth substances, which fruits would you select to induce parthenocarpy and why?

(b)What is the difference between parthenocarpic fruits and false fruits?

7 All reproductive tract infections (RTIs) are STDs, but all STD are not RTIs. Comment.

OR

Why tender coconut is considered a healthy source of nutrition?

How are pea seeds different from castor seeds with respect to endosperm?

8 (a)State the function of mast cells in allergy response?

(b)Name any two techniques that serve the purpose of early diagnosis of some bacterial/viral human diseases.

9 Mention the target cells of luteinsing hormone in human males and females. Explain the effects and changes which the hormone induces in each case.

10 Give two reasons why both the strands of DNA are not copied during transcription 
 
SECTION C
 
11 Explain the cause of Sickle-cell Anaemia and its inheritance. 
 
12 Read the graph given below. Correlate the ovarian events that take place in the human female according to the levels of the pituitary hormones during the following days:

 CBSE-Class-12-Biology-Sample-Paper-2020-Solved-Set-B 1

 

Please click the link below to download CBSE Class 12 Biology Sample Paper 2020 Solved Set B


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Sample Paper Biology Class 12

We hope you liked the above provided CBSE Class 12 Biology Sample Paper 2020 Solved Set B. To get an understanding of the type of questions which were asked in exams, it is important for Class 12 students to refer to CBSE Class 12 Biology Sample Paper 2020 Solved Set B that we have provided above. 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. If you do CBSE Class 12 Biology Sample Paper 2020 Solved Set B for Class 12 Biology you will easily understand the way examination Sample Paper are set by teachers.

Class 12 Biology Sample Paper

The latest Sample Paper CBSE Class 12 Biology Sample Paper 2020 Solved Set B covers all the topics which have been suggested by CBSE in their Class 12 Biology syllabus for the current year. By doing CBSE Class 12 Biology Sample Paper 2020 Solved Set B you will understand the regular questions and MCQ questions for Class 12 Biology which are always asked and learn them so that you can get full marks in those questions.

Class 12 Biology Model Question Paper Pdf Download

We have provided link above of CBSE Class 12 Biology Sample Paper 2020 Solved Set B in Pdf format so that you can just click the links and easily download the papers with answers. On studiestoday, we have also provided a download and print option for all CBSE Class 12 Biology latest Sample Papers for Class 12 Biology to make it more easy for students. You can download CBSE Class 12 Biology Sample Paper and Class 12 Biology Question Papers in PDF absolutely free of cost.

Biology Sample Paper Class 12 with Solutions

We have provided CBSE Class 12 Biology Sample Paper 2020 Solved Set B with solutions. You will be able to understand the type of answers which you should write in Class 12 Biology exams to score good marks. 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. This way you will be able to identify your weak areas and also understand how the teachers of Class 12 Biology set their questions in the exams.

CBSE Class 12 Biology Sample Paper with solutions

We have provided the current year Class 12 Biology Sample Paper. Students who want to practice Sample Paper from all previous years can easily get them on studiestoday. We are the leading website in India from which you can download all the latest Class 12 Biology study material for free as per the CBSE syllabus for Class 12 Biology for the current academic year.

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Yes, you can click on the links above and download Sample Paper in PDF for Class 12 for Biology. Click on above link to download CBSE Class 12 Biology Sample Paper 2020 Solved Set B

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