HBSE Class 12 Biology Question Paper 2017 Set A

CLASS : 12th (Sr. Secondary) Code No. 2030
Series : SS-M/2017

Roll No. SET : A

tho foKku
BIOLOGY
[ Hindi and English Medium ]
ACADEMIC/OPEN
(Only for Fresh Candidates)
(Evening Session)
Time allowed : 3 hours ] [ Maximum Marks : 60

• Ñi;k tk¡p dj ysa fd bl iz'u&i= esa eqfnzr iz'u 18 gSaA
Please make sure that the printed question paper are contains 18
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

2030/(Set : A) P. T. O.

(2) 2030/(Set : A)
Except answer-book, no extra sheet will be given. Write to the point and do

not strike the written answer.

• ijh{kkFkhZ viuk jksy ua0 iz'u&i= ij vo'; fy[ksaA

Candidates must write their Roll Number on the question paper.

• d`i;k iz'uksa dk mÙkj nsus lss iwoZ ;g lqfuf'pr dj ysa fd iz'u&i= iw.kZ o lgh gS] ijh
ijh{kk
{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; funsZ'k %

(i) lHkh iz'u vfuok;Z gSaA

(ii) bl ç'u-i= esa dqy 18 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 ckjg (i-xii) Hkkx gSa ftuesa ls (i) ls (viii) rd
cgqfodYih; rFkk (ix) ls (xii) rd oLrqfu"B izdkj ds iz'u gSaA izR;sd iz'u 1 vad dk
gSA

(iv) [k.M & c esa iz'u la[;k 2 ls 10 rd vfr-y?kwÙkjkRed iz'u gSa] izR;sd ds 2 vad gSaA

(v) [k.M & l esa iz'u la[;k 11 ls 15 rd y?kwÙkjkRed iz'u gSa] izR;sd ds 3 vad gSaA

2030/(Set : A)

(3) 2030/(Set : A)
(vi) [k.M& n esa iz'u la[;k 16 ls 18 rd nh?kZ mÙkjkRed iz'u gaS] izR;sd ds 5 vad gSaA

(vii) lHkh nh?kZ mÙkjkRed iz'uksa esa vkarfjd NwV miyC/k gSA ,sls iz'uksa esa ls vkidks dsoy
,d gh iz'u djuk gSA
General Instructions :

(i) All questions are compulsory.

(ii) This question paper contains 18 questions, which are divided into
four Sections : A, B, C and D.

(iii) Section – A contains question number 1 having twelve (i-xii) parts, in
which (i) to (viii) are multiple choice type and (ix) to (xii) are objective type
questions. Each question carry 1 mark.

(iv) Section – B contains question numbers 2 to 10 of very short answer
type questions and carry 2 marks each.

(v) Section – C contains question numbers 11 to 15 of short answer type
questions and carry 3 marks each.

(vi) Section – D contains question numbers 16 to 18 of long answer type
questions and carry 5 marks each.

(vii) Internal choice is available in all 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) fuEufyf[kr esa ls dkSu-ls tho esa vySafxd tuu dfydk }kjk gksrk gS \ 1

2030/(Set : A) P. T. O.

(4) 2030/(Set : A)
(A) DySfeMkseksukl
(B) gkbMªk
(C) iSuhflfy;e
(D) Liat
In which of the following organism, asexual reproduction occurs
by buds ?
(A) Chlamydomonas
(B) Hydra
(C) Penicillium
(D) Sponge

(ii) esaMy }kjk v/;;u fd, x, eVj ds ikS/ks esa fuEufyf[kr esa ls dkSu-lk fo'ks"kd izHkkoh
gS \ 1
(A) Qyh dk gjk jax
(B) Qyh dk ihyk jax
(C) Qwy dk lQsn jax
(D) vaR; Qwy dh fLFkfr

Which one of the following trait of pea plant studied by Mendel is
dominant ?

(A) Green pod colour

(B) Yellow pod colour

(C) White flower colour

(D) Terminal flower position

(iii) xq.klw=ksa esa Mh ,u , dk izfrdj.k v/kZlaj{kdh; rjg ls gksus dk irk yxkus ds fy,
Vsyj vkSj muds lg;ksfx;ksa us fdl ij iz;ksx fd, Fks \ 1

2030/(Set : A)

(5) 2030/(Set : A)
(A) lnkcgkj
(B) Qkck lse
(C) Qy eD[kh
(D) bZ0 dksykbZ
To prove semi-conservative replication of DNA in chromosomes,
Taylor and his colleagues conducted experiments on :

(A) Vinca rosea

(B) Vicia fava

(C) Drosophila melanogaster

(D) E.coli

(iv) lkSjeaMy esa i`Foh dh jpuk dk le; D;k ekuk tkrk gS \ 1

(A) 200 fcfy;u o"kZ iwoZ

(B) 4.5 fefy;u o"kZ iwoZ

(C) 4.5 fcfy;u o"kZ iwoZ

(D) 400 fefy;u o"kZ iwoZ

In the solar system, earth was supposed to have been formed
about :

(A) 200 Billion years back

(B) 4.5 Million years back

(C) 4.5 Billion years back

2030/(Set : A) P. T. O.

(6) 2030/(Set : A)
(D) 400 Million years back

(v) vehch vfrlkj dk jksxdkjd dkSu-lk gS \ 1
1 1

(A) oqpsjsfj;k
(B) IykT+eksfM;e
(C) ,sLdsfjl
(D) ,aV,ehck fgLVksfyfVdk
Which one is the pathogen of amoebic dysentery ?

(A) Wuchereria

(B) Plasmodium

(C) Ascaris

(D) Entamoeba histolytica

(vi) xsgw¡ dh v)Zokeu fdLe dk fodkl fdlus fd;k Fkk \ 1

(A) ukWeZu bZ0 cksjykWx
(B) ,e0 ,l0 LokehukFku
(C) xzsxj esaMsy
(D) gjcVZ cks;j
Who developed the semi-dwarf variety of wheat ?

2030/(Set : A)

(7) 2030/(Set : A)
(A) Norman E. Borlaug

(B) M. S. Swaminathan

(C) Gregor Mendel

(D) Herbert Boyer

(vii) cSdj ;hLV dk mi;ksx dkSu-ls [kk| mRikn cukus esa fd;k tkrk gS \ 1

(A) ngh
(B) czsM
(C) bMyh
(D) fdf.or eRL;
Baker's Yeast is used in the preparation of edible product ?

(A) Curd

(B) Bread

(C) Idli

(D) Fermented fish

(viii) fuEufyf[kr esa ls dkSu-lh xzhu gkml xSl ugha gS \ 1

(A) dkWcZu MkbvkWDlkbM
(B) ehFksu
(C) lYQj MkbvkWDlkbM

2030/(Set : A) P. T. O.

(8) 2030/(Set : A)
(D) ukbVªl vkWDlkbM
Which one of the following is not a green house gas ?

(A) Carbon dioxide

(B) Methane

(C) Sulphur dioxide

(D) Nitrous oxide

(ix) Dyksu fdls dgrs gSa \ 1

What is clone ?

(x) 2001 bZ0 dh tux.kuk ds vuqlkj Hkkjr esa ekuo tula[;k o`f)nj fdrus izfr'kr Fkh

\ 1

What was the human population growth rate in India, according to
2001 census report ?

(xi) fcUnq mRifjoZu fdls dgrs gSa \ 1

What is point mutation ?

(xii) ifjra= esa fLFkr 'kL; fdls dgrs gSa \ 1

What is standing crop in an ecosystem ?

[k.M – c
SECTION – B
¼vfr-y?kwÙkjkRed iz'u½
2030/(Set : A)

(9) 2030/(Set : A)
(Very Short Answer Type Questions)

2. Hkkjr esa tula[;k foLQksV ds dksbZ nks eq[; dkj.k crkb,A 2

Mention two main causes of population explosion in India.

3. thoksa esa letkrh; lajpuk,¡ D;k gSa \ ;s fdl izdkj ds fodkl dks fu:fir djrs gSa \ 2

What are homologous structures in organisms ? State the kind of
evolution they represent.

4. mu dksf'kdkvksa ds iz:i dk uke fyf[k, ftuesa ,M~l dk ok;jl ekuo 'kjhj esa ?kqlus ds ckn
loZizFke izos'k djrk gSA bu dksf'kdkvksa ds Hkhrj bl ok;jl esa gksus okyh mu ?kVukvksa dk
Øe le>kb, tks muesa viuh larfr c<+kus gsrq gksrh tkrh gSA 2
Name the type of cells that AIDS virus first enters into after getting
inside the human body. Explain the sequence of events that virus
undergoes within these cells to increase their Progeny.

5. lw{e izo/kZu }kjk mRiUu ikS/kksa dks lksekDyksu D;ksa dgrs gSa \ bl rduhd ds nks ykHk crkb,A
2

Why are the plants raised through micro- propagation termed as
somaclones ? Mention two advantages of this technique.

6. th bZ , lh dks foLrkfjr dhft, rFkk Hkkjr ljdkj }kjk xfBr bl laxBu dh ftEesnkfj;k¡
crkb,A 2

Explain GEAC and mention the responsibilities of this organization set-
up by the Indian Government.

7. le>kb, fd cgqr NksVs vkdkj ds tUrq /kzqoh; {ks=ksa esa fojys gh D;ksa ik;s tkrs gSa \ 2

2030/(Set : A) P. T. O.

( 10 ) 2030/(Set : A)
Explain, why are very small animals rarely found in polar regions ?

8. izkFkfed vkSj f}rh;d vuqØe esa eq[; vUrj crkb,A nksuksa dk ,d-,d mnkgj.k nhft,A 2
State the main difference between primary and secondary succession.
Provide one example of each.

9. ml lekt-tSooSKkfud dk uke fyf[k, ftlus tSo fofo/krk 'kCn dks izpfyr fd;kA Hkkjr esa
pkoy ds 50,000 LVªsu }kjk fu:fir tSo fofo/krk dk Lrj crkb,A 2

Name the socio-biologist who popularized the term biodiversity. Identify

the level of biodiversity represented by 50,000 strains of rice in India.

10. fdlkuksa ds }kjk Qlyksa esa Mh Mh Vh ds mi;ksx ls LFkkuh; i{kh lef"V fdl izdkj dk nq"izHkko
iM+rk gS] le>kb, \ 2

How is the local bird population affected by the use of DDT in crops by

the farmers ?

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

11. ijh{kkFkZ Økl D;k gksrk gS \ blds }kjk ikS/ks dh fo"ke;qXetrk dk irk fdl izdkj yxk;k tk
ldrk gS \ 3

What is test cross ? How can it decipher the heterozygosity of a plant ?

2030/(Set : A)

( 11 ) 2030/(Set : A)
12. LVªsIVksdksdl] ekSuSLdl vkSj VªkbdksMekZ }kjk mRiUu tSo lfØ; v.kqvksa vkSj muds vkS"k/kh;
egÙo crkb,A 3

State the medicinal value and the bioactive molecules produced by
Streptococcus, Monascus and Trichoderma.

13. EcoRI D;k gS \ blds }kjk igpkus tkus okys iSfyUMªksfed U;wfDy;ksVkbM vuqØe dks fyf[k,A
tSo izkS|ksfxd esa EcoRI dh Hkwfedk crkb,A 3

What is EcoRI ? Write the palindromic nucleotide sequence recognized
by it. State the role of EcoRI in biotechnology.

14. rEckdw ds ikS/ks esa uheSVksM laØe.k ds fo#) izfrjks/k fodflr djus esa vkj ,u , fdl izdkj
gLr{ksi djrk gS \ 3
How does RNA interference helps in developing resistance in tobacco
plant against nematode infection ?

15. ,slh dksbZ rhu rduhd dk o.kZu dhft, ftlesa tSo fofo/krk ds oká LFkku laj{k.k ds fu;e
dks iz;qDr fd;k tkrk gSA 3
Describe any three techniques where the principle of ex-situ
conservation of biodiversity has been employed.
[k.M – n
SECTION – D
¼nh?kZ mÙkjkRed iz'u½
(Long Answer Type Questions)

16. iq"ih ikni ds ,diz:ih izrh; chtk.M dh lajpuk dk o.kZu ,d ukekafdr js[kkfp= ds lkFk
dhft,A 5
With the help of a labelled diagram, describe the structure of a typical
anatropous ovule.
2030/(Set : A) P. T. O.

( 12 ) 2030/(Set : A)
vFkok
OR

(i) iq"ih ikni ds ijkx-d.k dh lajpuk dk o.kZu ukekafdr fp= ds lkFk dhft,A 3
With the help of labelled diagram, describe the structure of
pollengrain of a flowering plant.

(ii) vusd iztkfr;ksa ds ijkx-d.k ekuo LokLF; dks fdl izdkj izHkkfor djrs gSa \
le>kb,A 2
How do pollengrains of many species affect human health ?
Explain.

17. L=h ds vkrZo pØ ds nkSjku vaMk'k;ksa vkSj xHkkZ'k; esa gksus okys ifjorZuksa dk o.kZu dhft,A
5
Describe the changes that occur in ovaries and uterus in human female
during the menstrual cycle.
vFkok
OR

L=h esa gksus okys vkrZo pØ ds nkSjku ih;w"k rFkk vaMk'k;h gkeksZuksa dh Hkwfedk dk o.kZu
dhft,A 5
Describe the role of pituitary and ovarian hormones during menstrual
cycle in a human female.

18. Mh ,u , ds v/kZlaj{kh izfrdj.k dks iz;ksxkRed :i ls fdlus fl) fd;k vkSj fdl izdkj
fd;k \ le>kb,A 5
Who proved semi-conservative replication of DNA experimentally and
how ? Explain.

2030/(Set : A)

( 13 ) 2030/(Set : A)
vFkok
OR

thok.kq dksf'kdkvksa ds Hkhrj VªkalfØI'ku ds nkSjku izkjaHku] nh?kZu vkSj lekiu fØ;k dks
le>kb,A 5
Explain initiation, elongation and termination during transcription in
bacterial cells.

s

2030/(Set : A) P. T. O.