CBSE Sample Paper 2021-22 (Term 1) for Biology Subject of Class 12 is available here for download in PDF format. This MCQ based CBSE 12th Biology Sample Paper has been recently released by the board and is very important resource for the preparation of CBSE Class 12 Biology board exam 2021-22.
CBSE Class 12 Sample Paper 2021-22 (Term 1): Class 12 Biology
Time: 90 Minutes
1. The Question Paper contains three sections.
2. Section A has 24 questions. Attempt any 20 questions.
3. Section B has 24 questions. Attempt any 20 questions.
4. Section C has 12 questions. Attempt any 10 questions.
5. All questions carry equal marks.
6. There is no negative marking.
SECTION – A
Section – A consists of 24 questions. Attempt any 20 questions from this section. The first
attempted 20 questions would be evaluated.
Question 1. The structure of bilobed anther consists of
A. 2 thecae, 2 sporangia
B. 4 thecae, 4 sporangia
C. 4 thecae, 2 sporangia
D. 2 thecae, 4 sporangia
D. 2 thecae, 4 sporangia
3 in chalazar end 3 in the micropolar end and 2 nuclei in the center
The coconut water from tender coconut is
A. cellular endosperm.
B. free nuclear endosperm.
C. both cellular and nuclear endosperm.
D. free nuclear embryo
B. Free nuclear endosperm
Pollen grains are well preserved as fossils because of presence of
B. ii, iii
Question 6: Which of the following statements are correct with respect to hormones secreted by placenta?
(i) Placenta secretes relaxin during later stage of pregnancy.
(ii) Placenta secretes high amount of FSH during pregnancy.
(iii) Placenta secretes relaxin during initial stage of pregnancy.
(iv) Placenta secretes hCG and hPL during pregnancy.
A. (i) and (iv)
B. (i), (ii) and (iv)
C. (iii) and (iv)
D. (ii), (iii) and (iv)
A) (i) and (iv)
For rest of the questions and answers, download sample paper and marking scheme from the following link
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