MP Board Class 12 Question Paper 2020 for Biology

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E-824 Roll No.
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Higher Secondary Examination (Regular) - 2020

11411-t
BIOLOGY
(Hindi & English Versions)

Total Total Printed Time : Maximum
Questions : 18 Pages : 8 3 Hours Marks : 70

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Instructions :
(i) All questions are compulsory.
(ii) Question Nos. 1 to 4 are objective type questions. Each question carries
5- marks.
(iii) Question Nos. 5 to 7 are very short answer type questions. Word limit is
approximately 30 words to answer. Each question carries 2 marks.
(iv) Question Nos. 8 to 10 are short answer type questions. Word limit is
approximately 75 words to answer. Each question carries 3 marks.
(v) Question Nos. 11 to 15 are long answer type questions. Word limit is
approximately 120 words to answer. Each question carries 4 marks.
(vi) Question Nos. 16 to 18 are long answer type questions. Word limit is
approximately 150 words. Each question carries 5 marks.
(vii) Question Nos. 5 to 18 have internal choice.
(viii) Draw neat and labelled diagrams.

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Fill in the blanks :
(i) Which fruits develop without fertilisation are called
(ii) Chromosomal theory of inheritance is given by and Theodore
Boveri.
(iii) Capacity to generate a whole plant from any celllexplants is called

(iv) Each restriction endonuclease recognises a specific in the
DNA.
(v) The Amazon rain forest is so huge that it is called the

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(31") 1986 (it) 1974
Os) 1968 0.) 1981
oose the correct options :
Kingdom Fungi reproduces asexually by :
(a) Fission (b) Budding
(c) Gemmule (d) Conidia
Which is the golden period of Dinosaurs or Reptiles ?
(a) Mesozoic (b) Coenozoic
(c) Azoic (d) Palaeozoic
Cirrhoris of liver is caused by :
(a) Fat (b) Vitamins
(c) Tobacco (d) Alcoholism
Bt toxin is produced by :
(a) Brecikar Nepus (b) Bacillus Thuringiensis
(c) Azola (d) Rizobium
Environmental Protection Act was passed in :
(a) 1986 (b) 1974
(c) 1968 (d) 1981

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Answer in one word / sentence :
(i) Name the process of release of ovum from grafian follicle. 1---:
or.)
(ii) The name of DNA segment which synthesized polypeptide chain.
(iii) Name the codon which code methionine.
(iv) What we called rearing of fishes ?
(v) Methods for controlling insects/weeds by microorganism

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(a) IUCD (1)
N)

(b) LicbiRdi (2) (.-r1

(c) (3) 10% fkz:Fr

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(6) (i ,3-1 444-1 cri

Match the columns :
(a) IUCD (1) Melanism
(b) Mutualism (2) Humulin
(c) Biston bitularia (3) 10% Law
(d) Man made Insulin (4) Copper T
(e) Energy Flow (5) Lichens
(6) Rizobium

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e the reason the human testes are situated outside the Abdominal Cavity.

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What is medical termination of pregnancy ?

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What is somatic hybridisation ? Give an example.

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Write economic importance of Spirulink.
i..;

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at is Biomagnification ?

OR

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ite the names of levels of biological organisation of biodiversity.

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What is parturition ? Write the name of hormone which induceds
parturition.
/ OR

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Define amniocentesis prOcess.
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What is Genetically Modified Organism (GMO) ? Write its importance.

War OR

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Write short note on Biopyracy.

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What is In-Situ conservation and Ex-situ conservation ?

zraiM / OR
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Write about green house effect.

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What is Operon model ? Describe structure of Lac Operon.

zitr4T / OR

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Describe the process of mRNA synthesis by DNA.

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Differentiate between Homologous and Analogous organs.

ZIP-MT / OR

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Differentiate Lamarckism and Neo Lamarckism.

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the life cycle of Plasmodium with diagram.

aPi4T / OR

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cribe the structure of Antibody with labelled diagram.

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is Sewage ? In which way can Sewage be harmful to us ?

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at are the key differences between primary and secondary sewage treatment ?

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scribe briefly PCR with diagram.

314-41 /OR

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scribe briefly downstream processing with diagram.

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ifferentiate between Asexual and Sexual reproduction.
WWI / OR

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ifferentiate between self-pollination and cross-pollination.

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Explain the law of dominance using a monohybrid cross.

aTergi / OR

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Explain the inheritance of haemophillia when diseased father and normal
mother will produce children.

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Write morphological adaptation in Xerophytes plants. (any 6)

aTERT / OR

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Explain Food Chain.

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