Home Job CBSE Class 12 Biology Marking Scheme & Sample Paper 2021-22: Based On Revised CBSE Syllabus

CBSE Class 12 Biology Marking Scheme & Sample Paper 2021-22: Based On Revised CBSE Syllabus

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Test CBSE Class 12 Biology Marking Scheme 2021-22 (Time period 1) together with CBSE Pattern Paper.

Test CBSE Class 12 Biology Marking Scheme 2021-22 (Time period 1) together with CBSE Pattern Paper. These each are vital assets for the preparation of CBSE twelfth Biology board examination 2021-22. College students having Biology as certainly one of their topics and focustion on Time period 1 CBSE twelfth Biology board examination 2021-22 are suggested to obtain these assets and plan their research accordingly.

CBSE Term 1 Xth & XIIth Board Exam 2021-22: Check New OMR Sheet’s PDF & Other Important Resources!
CBSE Time period 1 Class 12 Biology Pattern Paper 2021-22: CBSE Class 12 Biology Marking Scheme

CBSE Class 12 Pattern Paper 2021-22 (Time period 1): Class 12 Biology

Time: 90 Minutes

Common Directions:

The Query Paper comprises three sections.

Part A has 24 questions. Try any 20 questions.

Part B has 24 questions. Try any 20 questions.

Part C has 12 questions. Try any 10 questions.

All questions carry equal marks.

There is no such thing as a destructive marking.

SECTION – A

Part – A consists of 24 questions. Try any 20 questions from this part. The primary

tried 20 questions can be evaluated.

Que 1. The construction 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

Ans:

D. 2 thecae, 4 sporangia

NCERT Exemplar Solutions for CBSE Class 12 Biology: All Chapters

Que 2.

Ans:

B. 3,3,2

3 in chalazar finish 3 within the micropolar finish and a couple of nuclei within the middle

Que 3:

The coconut water from tender coconut is

A. mobile endosperm.

B. free nuclear endosperm.

C. each mobile and nuclear endosperm.

D. free nuclear embryo

Ans:

B. Free nuclear endosperm

Que 4:

Pollen grains are nicely preserved as fossils due to presence of

A. sporopollenin

B. cellulose

C. lignocellulose

D. pectocellulose

Ans:

A. sporopollenin

Que 5:

Ans:

B. ii, iii 

NCERT Solutions for Class 12: Download PDF

Que 6: Which of the next statements are right with respect to hormones secreted by placenta?

(i) Placenta secretes relaxin throughout later stage of being pregnant.

(ii) Placenta secretes excessive quantity of FSH throughout being pregnant.

(iii) Placenta secretes relaxin throughout preliminary stage of being pregnant.

(iv) Placenta secretes hCG and hPL throughout being pregnant.

A. (i) and (iv)

B. (i), (ii) and (iv)

C. (iii) and (iv)

D. (ii), (iii) and (iv)

Ans:

A) (i) and (iv)

.

.

.

For remainder of the questions & solutions, obtain CBSE pattern paper & marking scheme from the next hyperlink

CBSE Class 12 Biology Sample Paper 2021-22 Term 1 [PDF]

CBSE Class 12 Biology Marking Scheme 2021-22 Term 1 [PDF]

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