CBSE Class 12 Biology Boards 2021 Sample Paper Solved

Read and download PDF of CBSE Class 12 Biology Boards 2021 Sample Paper Solved 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 Boards 2021 Sample Paper Solved

Biology Class 12 Sample Paper

SECTION A
Questions Marks
1. Why does endosperm development precede embryo development?
 
2. How many meiotic divisions are required to produce 76 seeds in a Guava fruit? 
 
3. How does pollination take place in water hyacinth and water lily? 
 
4. Name the glands that contribute to human seminal plasma. 
 
5. A snapdragon plant with violet flowers was crossed with another such plant with white flowers. The F1 progeny obtained had pink flowers. Explain, in brief, the inheritance pattern seen in offsprings of F1 generation?
 
6. Differentiate between aneuploidy and polyploidy. 
 
7. Predict the effect if, the codon UAU coding for an amino acid at the 25th position
of a polypeptide of 50 amino acids, is mutated to UAA.
 
8. Differentiate between pro-insulin and mature insulin.
 
9. Name the commonly used vector for cloning genes into higher organisms. 
 
10. Which of the three forests- Temperate, Mangroves and Tropical Evergreen is more vulnerable to invasion by outside animals and plants?
 
11. Assertion: Primary transcripts in eukaryotes are nonfunctional.
 
Reason: Methyl guanosine triphosphate is attached to 5’ – end of hnRNA.
 
a. Both assertion and reason are true, and reason is the correct explanation of assertion.
 
b. Both assertion and reason are true, but reason is not the correct explanation of assertion.
 
c. Assertion is true but reason is false.
 
d. Both assertion and reason are false.
OR
Assertion: An organism with lethal mutation may not even develop beyond the zygote stage.
 
Reason: All types of gene mutations are lethal.
 
a. Both assertion and reason are true, and the reason is the correct explanation of the assertion.
 
b. Both assertion and reason are true, but the reason is not the correct explanation of the assertion.
 
c. Assertion is true but reason is false.
 
d. Both assertion and reason are false
 
12. Assertion: E. coli having pBR322 with DNA insert at BamHI site cannot grow in medium containing tetracycline.
 
Reason: Recognition site for Bam HI is present in tetR region of pBR322.
 
a. Both assertion and reason are true, and the reason is the correct explanation of the assertion.
 
b. Both assertion and reason are true, but the reason is not the correct explanation of the assertion.
 
c. Assertion is true but reason is false.
 
d. Both assertion and reason are false
 
13. Assertion: A community with more species is more stable than that with less species.
 
Reason: More the number of species, lesser the variation in the total biomass production year after year.
 
a. Both assertion and reason are true, and the reason is the correct explanation of the assertion.
 
b. Both assertion and reason are true, but the reason is not the correct explanation of the assertion.
 
c. Assertion is true but reason is false.
 
d. Both assertion and reason are false
 
Please click on below link to download CBSE Class 12 Biology Boards 2021 Sample Paper Solved.

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Sample Paper Biology Class 12

We hope you liked the above provided CBSE Class 12 Biology Boards 2021 Sample Paper Solved. 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 Boards 2021 Sample Paper Solved 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 Boards 2021 Sample Paper Solved 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 Boards 2021 Sample Paper Solved 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 Boards 2021 Sample Paper Solved 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

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Biology Sample Paper Class 12 with Solutions

We have provided CBSE Class 12 Biology Boards 2021 Sample Paper Solved 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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