Biology (Botany+Zoology) | Grade 12-XII | Model Question Paper | 2077-2020 | Subject Code-214 | NEB | Download in PDF

NATIONAL EXAMINATIONS BOARD [NEB]

Candidates are required to give their answers in their own words as far as practicable. The figures in the margin indicate full marks.

[alert type=alert_outline alert_info](Note: This question paper contains Botany portion in Group 'A' and Zoology portion in Group 'B'. Complete Group A (Botany) and then go to Group B Zoology.)[/alert]

Group 'A'

Botany

Attempt all questions.

1. Answer in short on any two. (2x1=2)

a) Give any two names of xylem elements.

b) Illustrate about recessive.

c) What does it mean by farmyard manure ?

2. Describe in brief on any two. (2x3=6)

a) Structure and function of chlorenchyma.

b) Double fertilization.

c) Application of biotechnology.

3. Define respiration and describe the various steps involved in Kreb's cycle. (7)

Or

Define crossing over and describe its mechanism and significance with necessary diagrams.

Group 'B'

Zoology

Attempt all questions.

1. Answer in short on any two. (2x1=2)

a) What is pellagra ?

b) What is the term for one contraction phase and one relaxation phase of heart ?

c) Differentiate between vaccine and injection.

2. Answer in brief on any two. (2x3=6)

a) How coelom is formed during development of frog ?

b) The problems of population explosion.

c) The advantages of poultry farming.

3. Describe the structure and functions of pituitary gland. (7)

Or

Explain sources and biological effects of different categories of drugs.

View and download the Biology-Botany+Zoology Grade 12-xii Model Question Paper of the year 2077-2020 with subject code-214 neb containing fullmarks 30.

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