Read and download PDF of CBSE Class 12 Biology 2025 Sample Paper Solved Set 6 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 2025 Sample Paper Solved Set 6
Biology Class 12 Sample Paper
SECTION-A
1. Genotype ratio of 1:2:1 is obtained in a cross between
A) AB *AB
B) Ab * Ab
C) Ab * ab
D) Ab * ab
Answer : b
2. Match the items of column I with those of column II.
| Column I | Column II |
| A. Copper-releasing IUD | 1. Sterilization in males. |
| B. Hormone- releasing IUD | 2. Progesterone – estrogen combination. |
| C. Vasectomy | 3. Progestasert. |
| D. Oral contraceptive | 4. Multiload 375. |
a) A – 1, B -2 , C-3 , D-4
b) A – 2, B -1 , C-4 , D-3
c) A – 4, B -3 , C-1 , D-2
d) A – 3,B -2 , C-4, D-1
Answer : c
3. In E.coli , the lac operon gets switched on when
a) Lactose is present and it binds to the repressor.
b) Repressor binds to operator.
c) RNA polymerase binds to the operator.
d) Lactose is present and its binds to RNA polymerase.
Answer : a
4. SL Miller in his set up demonstrated chemical evolution by the appearance of which of the following molecules?
a. Amino acid
b. Organic acid
c. Peptide acid
d. All of these
Answer : d
5. The substance produced by a cell on viral infection that can protect other cells from further infection is
a) Serotonin
b) Colostrum
c) Interferon
d) Histamine
Answer : c
6. A DNA molecule is 160 base pairs long. If it has 20 % adenine, how many cytosine base pairs are present in this DNA molecule?
a. 40
b. 60
c. 80
d. 20
Answer : b
7. Which amino acids are present in histone proteins?
a) Lysine and histidine
b) Valine and histidine
c) Arginine and lysine
d) Arginine and histidine
Answer : c
8. Plasmids in bacterial cells are
a) Extra –chromosomal DNA, which cannot replicate.
b) Extra- chromosomal DNA, which can self-replicate.
c) Extra DNA associated with the genome.
d) Extra DNA , associated with the genome, but cannot replicate.
Answer : b
Please click the link below to download pdf file of CBSE Class 12 Biology 2025 Sample Paper Solved Set 6
| CBSE Class 12 Biology Boards 2020 Sample Paper Solved |
| CBSE Class 12 Biology Sample Paper 2020 Solved Set A |
| CBSE Class 12 Biology Sample Paper 2020 Solved Set B |
| CBSE Class 12 Biology Sample Paper 2019 Solved |
| CBSE Class 12 Biology Sample Paper 2019 Solved Set A |
| CBSE Class 12 Biology Sample Papers 2011 Set A |
| CBSE Class 12 Biology Sample Papers 2011 Set B |
| CBSE Class 12 Biology Sample Papers 2011 Set C |
| CBSE Class 12 Biology Sample Papers 2011 Set D |
| CBSE Class 12 Biology Sample Paper 2010 Set A |
| CBSE Class 12 Biology Sample Paper 2010 Set B |
| CBSE Class 12 Biology Sample Paper 2010 Solved Set C |
| CBSE Class 12 Biology Sample Paper 2010 Solved Set D |
| CBSE Class 12 Biology Blue print |
| CBSE Class 12 Biology Sample Paper Set A |
CBSE Class 12 Biology 2025 Sample Paper Solved Set 6
We hope you liked the above provided CBSE Class 12 Biology 2025 Sample Paper Solved Set 6. 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 2025 Sample Paper Solved Set 6 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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