HBSE Class 12 Question Paper 2023 Biology

CLASS : 12th (Sr. Secondary) Code No. 230
Series : SS/Annual-2023
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 8 rFkk iz'u 20 gSaA
Please make sure that the printed pages in this question paper are 8 in number and
it contains 20 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 NksMsa+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.

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

(2) 230/(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 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;; funs'Z k %
lkekU
(i) lHkh iz'u vfuok;Z gSaA
(ii) bl ç'u-i= esa dqy 20 iz'u gSa] tks pkj [k.Mksa % v] c] l rFkk n esa foHkDr gSaA
(iii) [k.M & v ds iz'u la[;k 1 esa iUnzg (i-xv) oLrqfu"B iz'u ¼cgqfodYih;/,d ;k nks 'kCnksa ;k
okD;ksa esa/fjDr LFkku½ gSaA çR;sd ç'u 1 vadk dk gSA

(iv) [k.M & c esa iz'u la[;k 2 ls 9 rd vfr-y?kwÙkjkRed iz'u gSaA izR;sd iz'u ds 2 vad gSaA
(v) [k.M & l esa iz'u la[;k 10 ls 17 rd y?kwÙkjkRed iz'u gSaA izR;sd iz'u ds 3 vad gSaA
(vi) [k.M & n esa iz'u la[;k 18 ls 20 rd nh?kZ mÙkjkRed iz'u gaSA izR;sd iz'u ds 5 vad gSaA
(vii) [k.M & n ¼nh?kZ mÙkjkRed iz'u½ ds nks iz'uksa esa vkUrfjd fodYi miyC/k gSA ,sls iz'uksa esa ls
vkidks nh x;h NwV esa ls dsoy ,d gh iz'u djuk gSA
General Instructions :
(i) All questions are compulsory.
(ii) This question paper contains 20 questions, which are divided into four
Sections : A, B, C and D.
(iii) Section – A contains question number 1 having fifteen (i-xv) objective type
questions (multiple choice type questions/one or two words or
sentences/Filling the blanks). Each question carries 1 mark.
(iv) Section – B contains question numbers 2 to 9 of very short answer type
questions and carry 2 marks each.

(3) 230/(Set : A)
(v) Section – C contains question numbers 10 to 17 of short answer type
questions and carry 3 marks each.
(vi) Section – D contains question numbers 18 to 20 of long answer type questions
and carry 5 marks each.
(vii) Internal choice is available in two questions of Section-D (Long Answer Type
Questions). You have to attempt only one of the given choice in such
questions.

[k.M – v
SECTION – A
¼oLrqfu"B iz'u½
(Objective Type Questions)

1. (i) uj fVM~Ms esa fyax Øksekslkse dkSu&lk gksrk gS \ 1
(A) XX (B) XY (C) XO (D) ZZ
The sex chromosome in male grasshopper is :
(A) XX (B) XY (C) XO (D) ZZ

(ii) chl vehuksa vEyksa ds la'ys"k.k gsrq fdrus izHkkoh dksMkWu gSa \ 1
(A) 64 (B) 61 (C) 20 (D) 3
How many effective codons are, for the synthesis of twenty amino acids ?
(A) 64 (B) 61 (C) 20 (D) 3

(iii) fuEu esa ls fdl vkj ,u , ikWyhejst ls tRNA dk vuqys[ku gksrk gS \ 1
(A) I (B) II (C) III (D) buesa ls dksbZ ugha
Which of the following RNA polymerase transcribes tRNA ?
(A) I (B) II (C) III (D) None of these

(iv) euq";ksa esa fu"kspu dgk¡ ij gksrk gS \ 1
(A) vaMokfguh ufydk (B) xHkkZ'k;
(C) xzhok (D) ;ksfu

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

(4) 230/(Set : A)
Where does fertilization take place in human beings ?
(A) Fallopian tube (B) Uterus
(C) Cervix (D) Vagina

(v) fuEu esa ls dkSu vius 'kjhj dh j{kk ds fy, [kkyksa dk iz;ksx djrk Fkk vkSj e`rdksa dks te+hu esa
xkM+rs Fks \ 1
(A) Mªk;ksfifFkdl (B) jkekfifFkdl
(C) gkseks bjsDVl (D) fu;aMjFky ekuo
Which of the following used hides to protect their body and buried their
dead ?
(A) Dryopithecus (B) Ramapithecus
(C) Homo erectus (D) Neanderthal man

(vi) dksyksLVªe esa dkSu&lh izfrj{kh izpqj ek=k esa ikbZ tkrh gS \ 1
(A) IgA (B) IgM
(C) IgE (D) IgG

Which antibodies are found in abundance in colostrum ?
(A) IgA (B) IgM
(C) IgE (D) IgG

(vii) ØkbZ IAC thu }kjk dwVc) gksus okys izksVhu fdldks fu;af=r djrs gSa \ 1
(A) eDdk Nsnd (B) dikl dk eqdqy Ñfe
(C) (A) vkSj (B) nksuksa (D) ePNj
The protein encoded by gene Cry IAC control :
(A) Corn borer (B) Cotton bollworm
(C) Both (A) and (B) (D) Mosquito

(viii) fdl ,atkbe }kjk thok.kq dksf'kdk dks rksM+k tkrk gS \ 1
By which enzyme bacterial cell is broken ?

(5) 230/(Set : A)
(ix) 1992 esa i`Foh lEesyu dgk¡ gqvk Fkk \ 1
Where was the Earth Summit held in 1992 ?

(x) MALT dks foLrkfjr dhft,A 1
Write full form of MALT.

(xi) foiqalu D;k gS \ 1
What is Emasculation ?

(xii) ewykadqj pksy ¼dksfy;ksjkbt+k½ fdls dgrs gSa \ 1
What is Coleorrhiza ?

(xiii) i`Foh ij jgus okyk lcls cM+k Mk;uklksj dkSu&lk Fkk \ 1
Which was the biggest land Dinosaurs ?

(xiv) iq#"kksa esa ca/;dj.k dh fof/k dks ------------- dgrs gSAa 1
Sterilisation procedure in the male is called ………….. .

(xv) fQukbydhVksuwfj;k esa fQukby,sysfuu -------------- esa cnyrk gSA 1

Phenylalanine is converted into ……………. in Phenylketonuria.

[k.M – c
SECTION – B

¼vfr-y?kwÙkjkRed iz'u½
(Very Short Answer Type Questions)

2. vkj ,u , dh rqyuk esa Mh ,u , jklk;fud laxBu dh n`f"V ls de lfØ; ,oa lajpukRed n`f"V ls
vf/kd LFkk;h D;ksa gksrk gS \ 2
Why is DNA chemically less reactive and structurally more stable when
compared to RNA ?

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

(6) 230/(Set : A)
3. Hkkjro"kZ esa tula[;k foLQksV ds eq[; dkj.k D;k gSa \ 2
What are the major causes of population explosion in India ?

4. izkFkfed ylhdk; vax D;k gksrs gSa \ fofHkUu izkFkfed ylhdk; vaxksa ds uke fyf[k,A 2
What are the primary lymphoid organs ? Name various primary lymphoid
organs.

5. áwxks Mh ozht ds fodkl dk fl)kUr D;k gS \ ;g MkfoZu ds er ls fdl izdkj fHkUu gS \ 2
What is the Hugo de Vries Theory of Evolution ? How does it differ from Darwin's
View ?

6. ,e Vh ih dh D;k vko';drk gS \ 2
What is the need of MTP ?

7. letkr vax D;k gksrs gSa \ ,d mnkgj.k nhft,A 2
What are homologous organs ? Give an example.

8. ,DlksU;wfDy,t ,oa ,aMksU;wfDy,t fdls dgrs gSa \ 2
What are Exonucleases and Endonucleases ?

9. feêh dh moZjrk c<+kus esa lk;ukscSDVhfj;k dh Hkwfedk dk o.kZu dhft,A 2
Explain the role of cyanobacteria to enrich the fertility of soil.

[k.M – l
SECTION – C
¼y?kwÙkjkRed iz'u½
(Short Answer Type Questions)

10. mUehy ijkx.kh iq"i D;k gksrs gSa \ D;k vuqUehfy; iq"iksa esa ijijkx.k laiUu gksrk gS \ vius mÙkj dh
lrdZ O;k[;k dhft,A 3
What are chasmogamous flowers ? Can cross pollination occur in cleistogamous
flowers ? Give reasons for your answer.

(7) 230/(Set : A)
11. ,p th ih ds egÙoiw.kZ y{; fyf[k,A 3
Write important goals of HGP.

12. rackdw ds /kweziku vkSj pckus ds izHkkoksa dk o.kZu dhft,A 3
Describe the effects of smoking and chewing of tobacco.

13. tSofofo/krk dh gkfu gksus ls D;k izHkko gksrs gSa \ 3
What is the impact of loss of Biodiversity ?

14. la[;k ds fijSfeM dk o.kZu dhft,A 3
Describe the pyramid of number.

15. ijthoksa esa fodflr fo'ks"k vuqdwy D;k gksrs gSa \ 3
What are the special adaptations evolved in Parasites ?

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

17. tSo fu;U=.k esa cSD;qyksok;jlsl dh Hkwfedk fyf[k,A 3

Write down the role of Baculoviruses in biological control.

[k.M – n
SECTION – D

¼nh?kZ mÙkjkRed iz'u½
(Long Answer Type Questions)

18. ekuo ds uj tuu ra= dk ukekafdr fp= cukb,A iq#"k fyax lgk;d ufydkvksa ds ckjs esa fyf[k,A 5

Draw a well labelled diagram of human male reproductive system. Write about
male sex accessory ducts.

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

(8) 230/(Set : A)
vFkok
OR

vkrZo pØ fdls dgrs gSa \ bldk fu;eu djus okys gkWeksZuksa dk dk;Z fyf[k,A
What is menstrual cycle ? Write down the functions of hormones which regulate
it ?

19. lgizHkkfork fdls dgrs gSa \ ,d mnkgj.k lfgr O;k[;k dhft,A 5
What is codominance ? Explain with an example.

vFkok
OR
oa'kkoyh fo'ys"k.k D;k gS \ ,sls fo'ys"k.k fdl izdkj mi;ksxh gks ldrs gSa \
What is pedigree analysis ? How can such analysis be useful ?

20. vk.kfod funku esa tSoizkS|ksfxdh fdl izdkj lgk;d gS \ 5

How is biotechnology helpful in molecular diagnosis ?

S