swfur

f f i1A^9W ry

". ( w w w, t*'16'o\o9 | ?al' bt"9fl 'ft ' ' c'o ^au( , itl^,L

Tabl6 1 shows the results of the draws recorded by the students:Jdurl 1 nanunjukkan l<erytusan dad cabutan yang dir,k& olch pe$ar

A group of students carried out an experiment to study the inheritance of colour in aflowering plant.The colour of llor,lrer is controlled by a $ingle pair of alleles, red and wiite.The students u3ed red and white button to represent f,ower colour, red alleles (R) andwhite alleles (r).Two black pouches, A and B, each containing a mixture of 50 red buttons and 50 whitebuttons were used to illustrat€ the crossing.

Sckumputan pelalar menjalant<an satu ekspcimen untuk mengkaii pen1/atsan wama bungadalam tumbuhan.Wema bungd dlkawel obh sepasang eleliaitu alet menh dan alel putih.Pelalar menwnakan butang manh den butang Wtih untuk mewaklli wama bunga ieitu €blmenh (R) dan alelpt$h (0.Dua uncang hitam A dan ts dlganakan , sctiap uncang dilsl dengan 50 butang t'€.'€,h dan Wbutang ,{tfrh yang akan dlgunal<an untuk fiEnenngkan kac/rkan.

Pouch A:50 red buttons +50 white buttongUncang A :50 butang nbrah +5A buf8,ag puuh

Pouch B:50 red buttons +50 white buttons

Uncang B:50 butang me6h +50 butang putih

The students canied out the sxperiment as follow6:Polejar ilrcnjalankan ck6,pc,tmcn scperti betkut

Step 'l: One button was drawt at random from each pouch.Langl@h 1: Satu butang dikefuanrJ,n *can Bwak dad setiap uncang

Step 2: The colour of he button was noted and recorded in a table.Langkah 2: Wama butang dl cetat den di rckod dalem Jadual

Step 3; The buttons were retnned to their regpective pouches.Langkah 3: Butang dil<e'/nbaill<q, setrula ko dalam uncang yang sama.

Step 4: Pouch A and B were shaken to mix the button randomly.Langkah 4: Uncang A dan B dl gonceng untuk memastiken butang bcrcempur &eac. rev|,',k

Sbp 5: Slep 1 to 4 were repeaM 20 times.Langkah 6: Langkah 14 diulang sehingga 20 kali

utaw numoerBiletBda€aba'',n

Colour combinations of bullon!RomUnastweme bu'ano Genotypo

Genod,pPhenotypo

Fenot gFrcm pouch Afb''..trthd i

From pouch Bnttl tr^r'ffi n

I o IJ

2 o oa

4 o I5 O6 o I7 a I8 t oI o10 O o11 o12 o a13 o o14 o ot5 TJ o

[Llhat sebclrhSULTT

[Lihat scbelah

16 t o17 a o1E I ot9 a o20 O a

Jadual 1

SULIT

(a) (i) Sbte two difhrent observations frum the expedment baled on the rerutts 3hourn inTable 1.Nytlil,kan dtta ,il'n7€lrhttl',n Wg it'tbGze dutpada eksD.rtn7dn ,F,'1dasart{on kcputusrnduipdaladu.ll

Obssrvafion 1 :Pcn?G,thafiid,n 1:

Obeetvation 2:Prnp,rhalian 2l

(ii) Stete the inference which corrcsponds b the oh9orvatiom in 1(a) (DWa'',k',r,afe/c/[ yaq *'pd8// clengpn pen?G/.halian dt 1(a) (0

lnference fnom obg€rvation 1:lnff,rcnsdaiped. ,p,nrifiafan I I

lnbrence from obseNation 2 :tntcrang dartpade pt

'','r'',ailan 2 i

[3 mark3l[3 n.dl,h]

[3 ma*s]P ne,kahl

Key: O \Mrlte buttonPg'tunjuk v Bubngpudh

| ffg,?'*::,

fl.lhrt sebclehSULM

455Ut [Lthrt sebclah

Fqo(amiaor's

us

I (a) (')

n

1 (a) (ii)

t:]

vsrlrbFPfd/t'€ddru['lh

Srthod to h.ndle O|e wrirbhUn merra;rf,all D€n boHr ubrrl

Manrpu|aFo vaflao|€:Penbo,Gnu bh dhnan N lati//€n

Responding variaHe:Pcf.?.7Do/aru!€,lt bctgp,t*balas

qonStant vafigDl€:Pcnfulahubah dlruttdld,n

(d)For

axsmlrclc08e (i) f the allele of ted flourcr ( R) b dominant to lhe allele of white flo!,ver (0, recotd the

genotype3 and phenolypes of all the draws in the Table 1.Jlka alal untuk rm/'',a r/.tt ge n7F,r',h (R) edeidd. dontnan l(6'ptdt

'/b, wsm. tungp putih (tt,

/E'kodken gcnodp dan t€notp &rmta cehttan dalam Jadual 1.

(ii) Using he data from Tabh 1, calculab the Etio of the phenotypes obbined from this€xperfrEnt.titenggun*an dttd dl Jadual l,Natngl{f,/n nisDah fenotip yang dlperolchl dadpada e*s!€.inen

Explain lhe rBsults obtained in 1(dxii) by using a genetic diagram.f€rrngt(an lBp.rtosrn Wg.lidapat dangE,n

'/langE1./,nat(€n nlah genetik

Fotaxaninefsua6(b) Comdeb Tablg 2 based on this expedrnent.

Ldrgka&n Jtdual 2 bcd,asf,*an?,*s,€nnrcn lni.

Table 2Jaduat 2

(c) Stite fte hypotheria fur this opedment.tly.takan hipo'F,.sis brC.rqpcfinpn inr'.

1 (dXD

t:][313,l

(e)

I (b)

tl

r (c)

n 1 (e)

t:]45Sl{t ll,ihat sebclah ll-ihrt rebelrh

(0

SULIT 4stilf,t

Bas€d on Table 1, explain the relationship between lhe number ofdralvs and thephenotype |ath.Batdagf/dcan Jadual l, &.nngkan hu}/.tngil tnt ta bilangon @t/,ttan dengdn nBbaf tsnotp.

[3 marks]13 m,e'*ahl

(S) Based ofl lhe experiment in tle inhedtance ot cobur in 8 tloti,ering plant ihat f|€students had don6, deduced Mendel's Filrt Lau, qf Inhedtance.Berdasarr6d trpadr akqp',dman pet r'g,fisen rtlgrma Urngd yarg flcllah dilabnl<an olchrunflts/{€a Hu'/.tm I'icntlcl Yaag Pulama.

[3 marfts13 nad<ah

The experiment is rcpeBtsd by de$eesirE the number of drarvB from lhe pouches.Predict tne €tio of tie phenotypes that you would obtein.Explein your pr€drcdon.Eltr,pGd,ncn dulrng &ngan nl€/nrynngl1d,n iunlth eebu'f'n butang detip,da uncang.n,$p,h fanofp yang a,'',n dhrarr,a.Terr,ngkan nnetan ande,

9

Classify the list ol materiab rhown below according io their function in theexperirEnt.(hsfft (asff(rn san.6l bahan di bswah nlp,/,{iktt fungsi ddam aksfp'n|aan.

(r)

[3 markelt3'''E,/,ll€,hl

1(0

tl

(h)

1 (s)

n

I (h)

tl

MatBdal FuncUon

Red brrttonWhlta Utttodr

Powh AandBP.lrof b,tl'tont tt,d'|''r

45514 ll,ilst sebclNh Ilihrt sebclah