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Today, we provide you the NEB Class 12 Biology Botany-Zoology MCQ Exam Paper 2081-2024 with subject code – 2021W which examination was held on the year 2081/2024 and you can download the neb grade xii (12) Biology Botany-Zoology MCQ subject exam question paper of the year 2081-2024 in PDF format which is only for the the regular and grade increment students whose first two digits of registration number starts from 78, 79 and 80. Please check and download pdf file grade 12 Biology Botany-Zoology MCQ Exam question paper of the year 2024-2081 Nepal. The Exam Question provided below – NEB Class 12 Biology Botany-Zoology MCQ Exam Paper 2081-2024 for the board exam 2079 and onwards. And it is based on the latest NEB Syllabus for 2079 and so on. We will be adding more Exam Question Papers of grade xii- class 12 later on. Scroll down to Download NEB Class 12 Biology Botany-Zoology MCQ Exam Paper 2081-2024 Sub. Code: 2021W in pdf format which is 214 kb in size. Enjoy!
NEB Class 12 Biology Botany-Zoology MCQ Exam Paper 2081-2024.
NATIONAL EXAMINATIONS BOARD [NEB]
Biology MCQs
Grade XII-Class 12
For Regular and Grade Increment Students.
Examination – 2081 (2024)
(New Course)
Subject Code: 2021W
Full Marks – 5+6
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(For the regular and grade increment students whose first two digits of registration number starts from 78, 79 and 80)
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Multiple Choice Questions
Rewrite the correct option of each question in your same answer sheet.
Section : I (Botany)
Group ‘A’ [5×1=5]
Rewrite the correct options of each questions in your answer sheet.
1. What is called the development of fruit without fertilization ?
A) Parthenocarpy
B) Apomixes
C) Polyspory
D) Parthenogenesis
2. What is the name of the process by which turgidity of a cell is maintained ?
A) Wall pressure
B) Osmotic pressure
C) Diffusion pressure
D) Turgor pressure
3. A heterozygous individual with the genotype Aa Bb is crossed with another heterozygous individual with the genotype Aa Bb. What is the probability of their offspring inheriting the recessive alleles for both traits ?
A) 1/4
B) 1/8
C) 1/16
D) 1/32
4. What is the name of the lateral meristem responsible for secondary growth in stems ?
A) Apical meristem
B) Vascular cambium
C) Cork cambium
D) Periderm
5. Which experimental result provides the strongest evidence for the involvement of auxin in root development ?
A) High auxin concentration inhibits root growth
B) Low auxin concentration stimulates root growth
C) High auxin concentration stimulates shoot growth
D) Low auxin concentration inhibits shoot growth
Section : II (Zoology)
Group ‘A’ [6×1=6]
12. Which pair of white blood cells contains phagocytic cells ?
A) Monocytes and eosinophils
B) Monocytes and neutrophils
C) Eosinophils and basophils
D) Monocytes and lymphocytes
13. What happens during spermeiogenesis in the process of spermatogenesis ?
A) Primary spermatocytes are formed from spermatogonia
B) Secondary spermatocytes are formed from primary spermatocytes
C) Spermatids are formed from secondary spermatozoa
D) Spermatozoa are formed from spermatids
14. Show the correct path of origin and conduction of heart beat in human heart.
A) Av-node, SA-node, bundle of His, Purkinje fibres
B) SA-node, Av-node, bundle of His, Purkinje fibres
C) SA-node, Av-node, Purkinje fibres, bundle of His
D) Av-node, bundle of His, Purkinje fibres, SA-node
15. Which enzymes are likely to act orderly on soyabean sprouts eaten by man as it moves down the alimentary canal ?
A) Pepsin, trypsin, peptidases
B) Trypsin, peptidases, pepsin
C) Pepsin, peptidases, trypsin
D) Peptidases, pepsin, trypsin
16. The cerebral cortex of human forebrain contains many functional areas. What would happen, if the frontal lobe of cerebrum is accidentally damaged ?
A) Loss of vision and hearing
B) Impaired respiration and circulation
C) Impaired water balance and hunger
D) Loss of memory and learning
17. What is the primary role of surrogate mother in the context of IVF ?
A) To ensure successful fertilization
B) To provide emotional support to biological mother
C) To carry the pregnancy to full term
D) To donate ova
NEB Class 12 Biology Botany-Zoology MCQ Exam Paper 2081-2024.
View and Download NEB Class 12 Biology Botany-Zoology MCQ Exam Paper 2081-2024 Code-2021W – Images.
