12th Biology Model Set in English

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>> Class 12th Board Biology Model Set Paper Question on Latest Pattern


BIOLOGY MODEL SET QUESTION – 1


1. Which one is diploid structure? 

(A) Ovaries

(B) Endosperm

(C) Zygote 

(D) All of these

Answer:- (C)

2. Oncogene is responsible for: 

(A) Cancer 

(B) AIDS

(C) Tuberculosis

(D) Polio

Answer:- (A)

3. Which one is hydrophytic plant? 

(A) Trapa 

(B) Opuntia

(C) Dulbergia 

(D) Acacia

Answer:- (A)

4. Fertilization outside the body is called –

(A) In vitro

(B) In vivo

(C) Both

(D) None

Answer:- (A)

5. World Environment day is celebrated on: 

(A) 5th June

(B) 20th December

(C) 15th March

(D) 7th July

Answer:- (A)

6. Sertoli cells are found in : 

(A) Testis

(B) Uterus

(C) Ovary

(D) Liver

Answer:- (A)

7. Operon Model is representation of:. 

(A) Gene synthesis

(B) Gene expression 

(C) Gene regulation

(D) Gene function

Answer:- (C)

8. Which one is not hermaphrodite animal? 

(A) Tape worm 

(B) Earth worm

(C) House fly

(D) Leech

Answer:- (C)

9. Which nitrogenous base is absent in DNA? 

(A) Thymine

(B) Urácil

(C) Guanine

(D) Cytosine

Answer:- (B)

10. Red Date Book includes list of : 

(A) Endangered plants

(B) Rare plants 

(C) Threatened animals

(D) All of the above

Answer:- (D)

11. Thalamus is edible part of:

(A) Annoma

(b) Apple

(C) Orange

(D) All of these

Answer:- (B)

12. DNA is genetic material of: 

(A) CMV

(B) Bacteriophase

(C) Both

(D) None

Answer:- (B)

13. Population explosion result in : 

(A) Reduction in Income

(B) Reduction in land 

(C) Reduction in Minerals

(D) All of these

Answer:- (D)

14. Acrosome is a part of: 

(A) Head of human sperm

(B) Middle part of human sperm 

(C) Primary oocyte

(D) Blastocyst

Answer:- (A)

15. Which one is bacterial disease?: 

(A) Leprosy

(B) Tuberculosis

(C) Cholera 

(D) All of these

Answer:- (A)

16. Chromosome number in human being (male) is : 

(A) 44 + XX

(B) 44 + xy

(C) 46 + xy

(D) 46 + xx

Answer:- (C)

17. Acetabularia is a type of: 

(A) Bacteria 

(B) Algae

(C) Protozoa

(D) Single cell protein

Answer:- (D)

18. Cleistogamous flowers are always : – 

(A) Self-Pollinated

(B) Cross pollinated

(C) Both 

(D) None

Answer:- (A)

 19. Flow of energy in food chain of an Ecosystem is : 

(A) Unidirectional

(B) Bidirectional 

(C) Multidirectional

(D) None

Answer:- (A)

20. Which blood group is called universal donor? 

(A) B

(B) A

(C) AB

(D) O

Answer:- (D)

21. Which one is phenotypic ratio of Monohybrid cross? 

(A) 1:2:1 

(B) 3:1

(C) 9:3:3:1 

(D) None

Answer:- (B)

22. Rhino sanctuary is located in which state? 

(A) Assam 

(B) West Bengal

(C) Uttar Pradesh

(D) Bihar

Answer:- (A)

23. Formation of mRNA from DNA is called :

(A) Transcription

(B) Replication 

(C) Translation 

(D) None

Answer:- (A)

24. The safe Noise level fixed by WHO is : 

(A) 20 – 30 Decibel

(B) 45 Decibel

(C) 75 Decibel 

(D) 90 Decibel

Answer:- (A)

25. Malaria is caused by : 

(A) Male culex 

(B) Female Anopheles 

(C) Female Aedes

(D) Male Anopheles

Answer:- (B)

26. Bio fertilizer is present in root nodules of which non-leguminous plant? 

(A) Azotobactor

(B) Clostridium

(C) Frankia 

(D) None

Answer:- (A)

27. Which Bacterium is used in formation of curd from milk?

(A) Clostridium 

(B) Lactobacillus

(C) Both a and b

(D) Streptococcus

Answer:- (B)

28. Inheritance of acquired characters was given by : 

(A) Darwin

(B) Lamarck

(C) de vries

(D) Haeckel

Answer:- (B)

29. The process of formation of gametes is called 

(A) Gametogenesis

(B) Cytokinesis 

(C) Sporogenesis

(D) Meiocytes

Answer:- (A)

30. What is fertilization? 

(A) Fusion of egg with male nuclei

(B) Fusion of egg with secondary nucleus

(C) Fusion of egg with synergid 

(D) None of these

Answer:- (B)

31. Who is considered as father of genétics? 

(A) Hugo de Vries 

(B) Morgan

(C) Mendel 

(D) Darwin

Answer:- (C)

32. In which stage does crossing over take place ? 

(A) Leptotene 

(8) Cytokinesis

(C) Pachytene

(D) Diakinesis

Answer:- (A)

33. Nucleic acids are polymers of 

(A) Nucleotides 

(B) Nucleosides

(C) Amino acids

(D) Nucleoproteins

Answer:- (A)

34. Elephantiasis is caused by 

(A)Ascaris 

(B) Taenia

(C) Wuchereria

(D) Entamoeba

Answer:- (C)

35. Biogas contains 

(A) CO2

(B) H2S

(C) CH4

(D) All of these

Answer:- (D)

36. PCR is used to detect 

(A) HIV

(B) Cancer

(C) TB

(D) Cholera

Answer:- (B)

37. Which one of the following is not Monoecious ? 

(A) Papaya

(B) Mustard

(C) Maize

(D) China rose

Answer:- (A)

38. World Environment Day is celebrated on 

(A) 6th December

(B) 5th June

(C) 6th January 

(D) None of these

Answer:- (B)

39. How many chromosomes are present in endosperm ? 

(A) n

(B) 2n 

(C) 3n

(D) Both (A) and (C)

Answer:- (D)

40. Anemophilous flowers are usually 

(A) attractive. 

(B) small”

(C) colourless 

(D) both (B) and (C)

Answer:- (D)

41. Widal test is for 

(A) AIDS 

(B) Malaria

(C) Tuberculosis 

(D) Typhoid

Answer:- (D)

94. Kanha National Park is famous for 

(A) Birds 

(B) Crocodiles / Alligators

(C) Rhinoceros 

(D) Tigers

Answer:- (C)

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