HBSE Class 12 Question Paper 2024 Biology

Haryana Board

QUESTIONPDF

PAPERS
2024

HBSE PYQP

CLASS : 12th (Sr. Secondary) Code No. 1231
Series : SS/Annual Exam.-2024
Roll No. SET : A

tho foKku
BIOLOGY
[ Hindi and English Medium ]
ACADEMIC/OPEN

(Only for Fresh/Re-appear/Improvement/Additional Candidates)

Time allowed : 3 hours ] [ Maximum Marks : 70
• Ñi;k tk¡p dj ysa fd bl iz'u&i= esa eqfnzr i`"B 16 rFkk iz'u 35 gSaA
Please make sure that the printed pages in this question paper are 16 in number
and it contains 35 questions.

• iz'u&i= esa nkfgus gkFk dh vksj fn;s x;s dksM uEcj rFkk lsV dks Nk= mÙkj&iqfLrdk ds eq[;&i`"B ij
fy[ksaA
The Code No. and Set on the right side of the question paper should be written by
the candidate on the front page of the answer-book.
• Ñi;k iz'u dk mÙkj fy[kuk 'kq: djus ls igys] iz'u dk Øekad vo'; fy[ksaA
Before beginning to answer a question, its Serial Number must be written.
• mÙkj&iqfLrdk ds chp esa [kkyh iUuk@iUus u NksMas+A
Don’t leave blank page/pages in your answer-book.
• mÙkj&iqfLrdk ds vfrfjDr dksbZ vU; 'khV ugha feysxhA vr% vko';drkuqlkj gh fy[ksa vkSj fy[kk mÙkj u
dkVsaA
Except answer-book, no extra sheet will be given. Write to the point and do not
strike the written answer.

1231/(Set : A) P. T. O.

(2) 1231/(Set : A)
• ijh{kkFkhZ viuk jksy ua0 iz'u&i= ij vo'; fy[ksaA jksy ua0 ds vfrfjDr iz'u&i= ij vU; dqN Hkh u
fy[ksa vkSj oSdfYid iz'uksa ds mÙkjksa ij fdlh izdkj dk fu'kku u yxk,¡A
Candidates must write their Roll No. on the question paper. Except Roll No. do not
write anything on question paper and don't make any mark on answers of objective
type questions.
• d`i;k iz'uksa ds mÙkj nsus lss iwoZ ;g lqfuf'pr dj ysa fd iz'u&i= iw.kZ o lgh gS] ijh{kk ds mijkUr bl
lEcU/k esa dksbZ Hkh nkok Lohdkj
Lohdkj ugha fd;k tk;sxkA
Before answering the questions, ensure that you have been supplied the correct and
complete question paper, no claim in this regard, will be entertained after
examination.
lkekU; funsZ'k %
(i) lHkh iz'u vfuok;Z gSaA
(ii) bl ç'u-i= esa dqy 35 iz'u gSa] tks ik¡p [k.Mksa % v] c] l, n rFkk ; esa foHkDr gSaA
(iii) [k.M & v eas 1 ls 18 rd oLrqfu"B iz'u gSA çR;sd ç'u 1 vadk dk gSA

(iv) [k.M & c esa iz'u la[;k 19 ls 25 rd vfr-y?kwÙkjkRed iz'u gSaA izR;sd iz'u ds 2 vad gSaA
(v) [k.M & l esa iz'u la[;k 26 ls 30 rd y?kwÙkjkRed iz'u gSaA izR;sd iz'u ds 3 vad gSaA
(vi) [k.M & n esa iz'u la[;k 31 ,oa 32 fp= vk/kkfjr ç'u gSaA izR;sd iz'u ds 4 vad gSaA
(vii) [k.M & ; esa ç'u la[;k 33 ls 35 rd nh?kZ mÙkjkRed iz'u gSaA çR;sd ç'u ds 5 vad gSaA
(viii) [k.M & c] l rFkk n ds nks ç'uksa esa ,oa [k.M & ; ds lHkh ç'uksa esa vkUrfjd fodYi miyC/k gSaA
,sls ç'uksa esa ls vkidks nh xbZ NwV esa ls dsoy ,d gh ç'u djuk gSA
General Instructions :
(i) All questions are compulsory.
(ii) This question paper contains 35 questions, which are divided into five
Sections : A, B, C, D and E.
(iii) Section – A contains 1 to 18 objective type questions. Each question carries
1 mark.
(iv) Section – B contains question numbers 19 to 25 of very short answer type
questions and carry 2 marks each.

1231/(Set : A)

(3) 1231/(Set : A)
(v) Section – C contains question numbers 26 to 30 of short answer type
questions and carry 3 marks each.
(vi) Section – D contains question numbers 31 & 32 are figure based questions
and carry 4 marks each.
(vii) Section – E contains question numbers 33 to 35 are long answer type
questions and carry 5 marks each.
(viii) Internal choice is available in two questions of Section–B, C and D and all
questions of Section–E. You have to attempt only one of the given choice in
such questions.

[k.M – v
SECTION – A

1. LH ¼,y,p½ fdl ij dk;Z djrk gS \ 1
(A) yhfMx dksf'kdk,¡ (B) lVksZyh dksf'kdk,¡
(C) (A) vkSj (B) nksuksa (D) LiesVZ ksxksfu;k

LH acts on :
(A) Leydig cells (B) Sertoli cells
(C) Both (A) & (B) (D) Spermatogonia

2. L=h esa ih;w"k xzafFk }kjk dkSu-lk gkWeksZu lzfor gksrk gS \ 1
(A) LH (B) FSH (C) vkWDlhVksflu (D) ;s lHkh
Which hormone is secreted by Pituitary gland in human female ?
(A) LH (B) FSH (C) Oxytocin (D) All of these

3. fuEufyf[kr esa ls dkSu-lk ty ls ijkfxr ugha gksrk \ 1

(A) oSfylusfj;k (B) gkbfMªyk (C) tksLVsjk (D) okVj-fyyh
Which of the following is not pollinated by water ?
(A) Vallisneria (B) Hydrilla (C) Zostera (D) Water-lily

1231/(Set : A) P. T. O.

(4) 1231/(Set : A)
4. çfrçdwV fdl ij gksrk gS \ 1
(A) mRNA (B) tRNA (C) rRNA (D) DNA
Anticodon is present on :
(A) mRNA (B) tRNA (C) rRNA (D) DNA

5. Xokuhu fdrus gkbMªkstu ca/kksa ls lkbVkslhu ls ca/kk gksrk gS \ 1
(A) 1 (B) 2 (C) 3 (D) 4
By how many hydrogen bonds guanine is bonded with cytosine ?
(A) 1 (B) 2 (C) 3 (D) 4

6. fuEufyf[kr esa ls dkSu-lk vkj,u, ikWyhejst jkbckslksey vkj,u, (rRNA) (28s, 18s o 5.8s) dks
vuqysf[kr djrk gS \ 1
(A) I (B) II (C) III (D) buesa ls dksbZ ugha
Which of the following RNA polymerase transcribes rRNAs (28s, 18s & 5.8s) ?
(A) I (B) II (C) III (D) None of these

7. ,d f}jtqdh; Mh,u, esa 15% lkbVkslhu gSA blesa fdrus çfr'kr Fkk;ehu gksxh \ 1
(A) 15% (B) 25% (C) 35% (D) 45%
A double stranded DNA has 15% cytosine. What will be the percentage of
thiamine in it ?
(A) 15% (B) 25% (C) 35% (D) 45%

8. fuEufyf[kr esa ls dkSu ok;qeaMyh; ukbVªkstu dks fLFkjhÑr dj ldrk gS \ 1

(A) ,sukchuk (B) uksLVkWd (C) vkWflysVksfj;k (D) ;s lHkh
Which of the following can fix atmospheric nitrogen ?
(A) Anabaena (B) Nostoc (C) Oscillatoria (D) All of these

9. fuEufyf[kr esa ls dkSu yky jDr df.kdkvksa ¼,fjFkzkslkbV~l½ dk HkaMkj gS \ 1

(A) Iyhgk (B) ân; (C) ylhdk uksM ¼xzafFk½ (D) ;s lHkh

1231/(Set : A)

(5) 1231/(Set : A)
Which of the following is reservoir of Erythrocytes ?
(A) Spleen (B) Heart (C) Lymph node (D) All of these

10. fdl ikS/ks ds ijkxd.k ,ythZ dkjd gSa \ 1
(A) dksfj,aMj (B) ikFksZfu;e (C) fVªfVde (D) buesa ls dksbZ ugha
Pollen grains of which plant cause allergy ?
(A) Coriander (B) Parthenium (C) Triticum (D) None of these

11. dkSu-lh thu ml çksVhal dks dwVc) djrk gS] tks eDdk Nsnd dks fu;af=r djrk gS \ 1

(A) ØkbZ I ,lh (B) ØkbZ II ,ch
(C) (A) vkSj (B) nksuksa (D) ØkbZ I ,ch
The proteins encoded by which gene control corn borer ?
(A) Cry I Ac (B) Cry II Ab

(C) Both (A) & (B) (D) Cry I Ab

12. dkSu-lk fMIVsjku gS \ 1

(A) Hk`ax (B) lSfud dhM+k
(C) rackdw dk dfydk dhM+k (D) ePNj
Which is a dipteran ?

(A) Beetle (B) Army worm

(C) Tobacco bud worm (D) Mosquito

13. dkSu-lk bu lhVw laj{k.k dk Hkkx gS \ 1

(A) oU;tho lQkjh ikdZ (B) tUrq m|ku
(C) jk"Vªh; m|ku (D) buesa ls dksbZ ugha

1231/(Set : A) P. T. O.

(6) 1231/(Set : A)
Which is a part of in situ conservation ?

(A) Wildlife Safari Park (B) Zoological Park

(C) National Park (D) None of these

14. leqæh ,suheksu vkSj Dykmu eNyh fdl ikjLifjd fØ;k dk mnkgj.k gSa \ 1

(A) lgHkksftrk (B) Li/kkZ
(C) ijthfork (D) lgksidkfjrk
Interaction between sea anemone and clown fish is an example of :

(A) Commensalism (B) Competition

(C) Parasitism (D) Mutualism

ç'u la[;k 15, 16, 17 ,oa 18 esa nks-nks dFku fn, x, gSa % vfHkdFku (A) vkSj dkj.k (R)A uhps fn, x,
mi;qDr fodYiksa dk p;u djrs gq, ç'uksa ds mÙkj nhft, %
The question nos. 15, 16, 17 & 18 given below consists of two statements each :
Assertion (A) and Reason (R). Answer the questions by selecting the appropriate
option given below :

15. vfHkdFku (A) : usV çkFkfed mRikndrk ldy çkFkfed mRikndrk ls vf/kd gksrh gSA 1
dkj.k (R) : usV çkFkfed mRikndrk dk ,d Hkkx 'olu ds nkSjku {kfrxzLr gks tkrk gSA
fodYi %
(A) vfHkdFku (A) vkSj dkj.k (R) nksuksa lR; gSa rFkk dkj.k (R), vfHkdFku (A) dh lgh O;k[;k gSA
(B) vfHkdFku (A) vkSj dkj.k (R) nksuksa lR; gSa ijUrq dkj.k (R), vfHkdFku (A) dh lgh O;k[;k ugha
gSA
(C) vfHkdFku (A) lR; gS ijUrq dkj.k (R) vlR; gSA
(D) vfHkdFku (A) ,oa dkj.k (R) nksuksa gh vlR; gSaA

1231/(Set : A)

(7) 1231/(Set : A)
Assertion (A) : Net primary productivity is greater than gross primary
productivity.

Reason (R) : A part of net primary productivity goes waste during respiration.

Options :

(A) Assertion (A) and Reason (R) both are true and Reason (R) is the correct
explanation of Assertion (A).

(B) Assertion (A) and Reason (R) both are true, but Reason (R) is not the
correct explanation of Assertion (A).

(C) Assertion (A) is true, but Reason (R) is false.

(D) Assertion (A) and Reason (R) both are false.

16. vfHkdFku (A) : gsjksbu ,d vksfivkWbM~l gSA 1

dkj.k (R) : gsjksbu ikWih ¼iksLr½ ds ikS/ks ls çkIr gksrk gSA

fodYi %

(A) vfHkdFku (A) vkSj dkj.k (R) nksuksa lR; gSa rFkk dkj.k (R), vfHkdFku (A) dh lgh O;k[;k gSA

(B) vfHkdFku (A) vkSj dkj.k (R) nksuksa lR; gSa ijUrq dkj.k (R), vfHkdFku (A) dh lgh O;k[;k ugha
gSA

(C) vfHkdFku (A) lR; gS ijUrq dkj.k (R) vlR; gSA

(D) vfHkdFku (A) ,oa dkj.k (R) nksuksa gh vlR; gSaA

1231/(Set : A) P. T. O.

(8) 1231/(Set : A)
Assertion (A) : Heroin is an opioids.

Reason (R) : Heroin is obtained from Poppy plant.

Options :

(A) Assertion (A) and Reason (R) both are true and Reason (R) is the correct
explanation of Assertion (A).

(B) Assertion (A) and Reason (R) both are true, but Reason (R) is not the
correct explanation of Assertion (A).

(C) Assertion (A) are true, but Reason (R) is false.

(D) Assertion (A) and Reason (R) both are false.

17. vfHkdFku (A) : tSo çkS|ksfxdh dh 'kq#vkr iqu;ksZxt v.kqvksa ds fodkl ls gqbZA 1

dkj.k (R) : tSo çkS|ksfxdh esa vf/kdrj Mh,u, ds okafNr fgLlksa dks dkVuk ,oa fpidkuk gksrk gSA
fodYi %
(A) vfHkdFku (A) vkSj dkj.k (R) nksuksa lR; gSa rFkk dkj.k (R), vfHkdFku (A) dh lgh O;k[;k gSA
(B) vfHkdFku (A) vkSj dkj.k (R) nksuksa lR; gSa ijUrq dkj.k (R), vfHkdFku (A) dh lgh O;k[;k ugha
gSA
(C) vfHkdFku (A) lR; gS ijUrq dkj.k (R) vlR; gSA
(D) vfHkdFku (A) ,oa dkj.k (R) nksuksa gh vlR; gSaA

1231/(Set : A)

(9) 1231/(Set : A)
Assertion (A) : Biotechnology started with development of recombinant
molecules.

Reason (R) : Biotechnology mostly involves in cutting & pasting of desired parts
of DNA.

Options :

(A) Assertion (A) and Reason (R) both are true and Reason (R) is the correct
explanation of Assertion (A).

(B) Assertion (A) and Reason (R) both are true, but Reason (R) is not the
correct explanation of Assertion (A).

(C) Assertion (A) are true, but Reason (R) is false.

(D) Assertion (A) and Reason (R) both are false.

18. vfHkdFku (A) : baVjQsjkWu ,d çdkj dk ,aVhckWMh gS tks 'kjhj ds cSDVhfj;k ls laØfer dksf'kdkvksa }kjk
fufeZr gksrk gSA 1

dkj.k (R) : baVjQsjkWu pksV ds LFkku ij lwtu dks mÙksftr djrs gSaA

fodYi %

(A) vfHkdFku (A) vkSj dkj.k (R) nksuksa lR; gSa rFkk dkj.k (R), vfHkdFku (A) dh lgh O;k[;k gSA

(B) vfHkdFku (A) vkSj dkj.k (R) nksuksa lR; gSa ijUrq dkj.k (R), vfHkdFku (A) dh lgh O;k[;k ugha
gSA

(C) vfHkdFku (A) lR; gS ijUrq dkj.k (R) vlR; gSA

(D) vfHkdFku (A) ,oa dkj.k (R) nksuksa gh vlR; gSaA
1231/(Set : A) P. T. O.

( 10 ) 1231/(Set : A)
Assertion (A) : Interferons are a type of antibodies produced by bacteria
infected cells of the body.

Reason (R) : Interferons stimulate inflammation at the site of injury.

Options :

(A) Assertion (A) and Reason (R) both are true and Reason (R) is the correct
explanation of Assertion (A).

(B) Assertion (A) and Reason (R) both are true, but Reason (R) is not the
correct explanation of Assertion (A).

(C) Assertion (A) are true, but Reason (R) is false.

(D) Assertion (A) and Reason (R) both are false.

[k.M – c
SECTION – B

19. iq#"k fyax lgk;d ufydkvksa ds uke fyf[k,A 2

Name various male sex accessory ducts.

20. vlqxqf.krk ¼,U;qIykWbMh½ fdls dgrs gSa \ blds dksbZ nks mnkgj.k fyf[k,A 2
What is Aneuploidy ? Write any two example of it.

21. çFke ikjthoh xk; dk uke fyf[k,A blds nw/k esa lk/kkj.k xk; ds nw/k ls D;k ykHk gS \ 2
Name first transgenic cow. What is the advantage of its milk over natural cow
milk ?

1231/(Set : A)

( 11 ) 1231/(Set : A)
22. ,d {ks= esa tSofofo/krk dh gkfu ls D;k çHkko gksrs gSa \ 2

What is the impact of loss of biodiversity in a region ?

23. vijn ,oa vi?kVu D;k gksrs gSa \ 2

What is detritus and decomposition ?

24. gekjh tula[;k c<+us ds dkj.k D;k gSa \ 2

What are the reasons of rise in our population ?

vFkok
OR

fofHkUu rkack ekspd vkbZ;wMh ds uke fyf[k,A ;s fdl çdkj xHkZfujks/ku esa lgk;d gSa \
Name various copper releasing IUDs. How do these help in contraception ?

25. çdwV ,d f=d gksrk gS vkSj lalDr :i esa i<+k tkrk gSA blds vkuqoaf'kd vk/kkj dk çek.k D;k gS \ 2
What is the genetic basis of proof that codon is a triplet and is read in
contiguous manner ?

vFkok
OR

AUG dk nksgjk dk;Z D;k gS \

What is the dual function of AUG ?

1231/(Set : A) P. T. O.

( 12 ) 1231/(Set : A)
[k.M – l
SECTION – C

26. ,d ?kkl ds Hkzw.k dk vuqçLFk dkV dk ukekafdr fp= cukb,AA 3
Draw a well labelled diagram of L. S. embryo of a grass.

27. vkj,u, ikWyhejst I, II, III ds dk;Z fyf[k,A 3
Write down the role of RNA polymerase I, II, III.

28. ikniksa esa 'kkdkgkfjrk ds fo#) j{kk djus dh egÙoiw.kZ fof/k;k¡ D;k gSa \ 3

What are the important defence mechanisms in plants against herbivory ?

29. lgt çfrj{kk ds fofHkUu jks/kksa ds ckjs esa fyf[k,A 3

Write about various barriers of innate immunity.

vFkok
OR

rackdw ds ç;ksx ds gkfudkjd çHkko D;k gksrs gSa \
What are the harmful effects of using tobacco ?

30. Mh,u, dks fof'k"V LFkkuksa ij fdl çdkj dkVk tk ldrk gS \ 3
How can DNA be cut at specific locations ?

vFkok
OR

tSo-çkS|ksfxdh ds rhu foospukRed vuqla/kku {ks= dkSu-ls gSa \
What are the three critical research areas of biotechnology ?

1231/(Set : A)

( 13 ) 1231/(Set : A)
[k.M – n
SECTION – D
31.

feyj ds ç;ksx ds mijksDr fp= dks nsf[k, vkSj fuEufyf[kr ç'uksa ds mÙkj nhft, %
See the above diagram of Miller's experiment and answer the following questions :
(i) ml ifjdYiuk dks crkb, ftls feyj us Åij fn, x, lsVvi dh lgk;rk ls ç;ksx'kkyk esa fl)
djus dk ç;kl fd;kA 2
State the hypothesis which Miller tried to prove in the laboratory with the
help of setup of experiment given above.
vFkok
OR
bl ç;ksx esa dkSu-dkSu-lh xSlsa ç;ksx esa yk;h xb± \
Which gases were used in this experiment ?
(ii) fdl o"kZ esa feyj us ;g ç;ksx fd;k \ 1
In which year Miller performed this experiment ?
(iii) ç;ksx dks pykus ds ckn rjy esa muds }kjk ns[ks x, dkcZfud ;kSfxdksa dk uke fyf[k,A 1
Name the organic compounds observed by him in liquid after running the
experiment.

1231/(Set : A) P. T. O.

( 14 ) 1231/(Set : A)
32. ihlhvkj ds pj.kksa dk ,d ;kstukc) çfrfuf/kRo uhps fn[kk;k x;k gSA blls lEcfU/kr fuEufyf[kr ç'uksa
ds mÙkj nhft, %
Schematic representation of the steps in PCR is shown below. Answer its related
following questions :

(i) A vkSj D pj.kksa ds uke crkb,A 1

Name the step of A and D.

(ii) ihlhvkj dk dk;Z D;k gS \ 1

What is the functions of PCR ?

(iii) B dks igpkfu, vkSj bldk jklk;fud :i D;k gS \ 2

Identify B and what is its chemical nature ?

vFkok
OR
C D;k gS \ ;g fdl tho ls çkIr gksrk gS \

What is C ? Name its source organism.

1231/(Set : A)

( 15 ) 1231/(Set : A)
[k.M – ;
SECTION – E

33. ekuo esa ;qXeut ds cuus ls varjksZi.k ¼bEIykaVs'ku½ rd gksus okys ifjorZuksa ¼cnykoks½a dk o.kZu dhft,A 5

Describe the changes take place from the formation of zygote to implantation in
human.

vFkok

OR

ijkxd.k dh lajpuk dk foLrkj ls o.kZu dhft,A

Describe the structure of pollen grain in detail.

34. vuqys[ku bdkbZ dk o.kZu dhft,A 5

Describe transcription unit.

vFkok

OR

ekuo esa ik, tkus okys fofHkUu Øksekslksey fodkjksa dk o.kZu djsaA

Describe various chromosomal disorders found in human beings.

35. ?kjsyw mRiknksa esa lw{ethoksa dh Hkwfedk dk o.kZu dhft,A 5

Describe the role of microbes in household products.

1231/(Set : A) P. T. O.

( 16 ) 1231/(Set : A)
vFkok
OR

jlk;uksa ,oa ,atkbe ds vkS|ksfxd mRiknu esa lw{ethoksa dh Hkwfedk dk o.kZu dhft,A
Describe the role of microbes in the production of Industrial chemicals and
enzymes.

S

1231/(Set : A)

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