Biology | MCQs | 2081-2024 of Class 12 | NEB

Today, we provide you the Biology MCQs 2081-2024 of Class 12 NEB with subject code - 2021W which examination was held on the year 2081/2024 and you can download the neb grade xii (12) Biology MCQs 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 - Biology MCQs 2081-2024 of Class 12 NEB 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 MCQs 2081-2024 of Class 12 NEB Sub. Code: 2021W in pdf format which is 214 kb in size. Enjoy!

Biology MCQs 2081-2024 of Class 12 NEB.

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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Rewrite the correct option of each question in your same answer sheet.

Section : I (Botany)

Group 'A' [5x1=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' [6x1=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

Biology MCQs 2081-2024 of Class 12 NEB.

View and Download Biology MCQs 2081-2024 of Class 12 NEB, Code-2021W - Images.

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