Biology ATP; DiscussiOn

[JAMES SMITH]

in tat inheritance ques...for tat cnclusion part i wrote k there r more ppl wid free ear lobes thn attachd...n mentions abt discntinuous variation thng
the ratio was cuming out 2 b 3:1
n thn in the next part in wich v had 2 tll sthg abt tis ratio(dun remembr the ques xctly)...i wrote k it tells us abt the genotyp ov most ov the population n furthr cnfrms k inheritnce ov tis charactr ix only dpndent upon genes n nt environmnt


are tese ryt 2 sum xtent????hw much cn i score in tese parts????

3:1 tells that free is dominant and attached is recessive and this is achieved when heterozygous breed

 

[JAMES SMITH]

ppl o wrote in the last ques that the pH would remain almost constant or change negligibly bcoz the yoghart formation is complete...and the action of bacteria has slowed down...almost stopped...no more lactose is present thus ph would'nt fall...and i guess this is the correct answer...

pH decreases then becomes constant as all the lactose was converted to lactic acid and it became more sour

 

[JAMES SMITH]

it was a line graph bcz the change was not uniform like at 1 hr 7 then at 6.6 then 6.4 then 5.6 sthng like that

 

[JAMES SMITH]

it was a line graph bcz the change was not uniform like at 1 hr 7 then at 6.6 then 6.4 then 5.6 sthng like that

Last Q was tricky... measuring thickness of milk was smething new. but the best Q was checking our ear lobes. This Q really enlightened my mood.

last one was bad
i mesured thickness using finger

 

[JAMES SMITH]

jismain yoghurt ki concentration measure krna tha!!

we have to measure thickness not concentration

 

[JAMES SMITH]

conclusion was easy.a simplistic statetement such as most of the people hav free ear lobes will giv 1 mark.refer to it by using the data-2nd mark
u will not ryt abt any genetic factor as it is asked in the next questions.discontinuous varaiation shown by the data another conclusion

what abou writing women more htan men in both and proving through statisitcal data
and writing discontinuous variation and more free than attached
for last i wrote sour and due to slip of pen wrote liquid instead of solid but explanation was perfect will i get all 3 or will they deduct all three

 

[Mobeen]

was the graph a best fit straight line or dot to dot lines .?

 

[fh1992]

the graph was sort of a curve...it had no specific shape...and best fit wasnt required...the flower was insect pollinated...

 

[Zishi]

the graph was sort of a curve...it had no specific shape...and best fit wasnt required...the flower was insect pollinated...

In biology you can draw graph with any method. You can draw a curve, join the points through straight lines and even you can draw a line of best fit!

 

[Mobeen]

the graph was sort of a curve...it had no specific shape...and best fit wasnt required...the flower was insect pollinated...

yea the flower was insect polinated.. it was easy..

 

[sasukeuchiha]

we will pour it from one container to other nd measure the time it takes! OR u can use a stirrer and stir it when it becomes thick it will take more effort to stir it!

i used the first way.
what was the last questions' last part's answer????i wrote that there would be no change b/c the yougurt was already solid, set and not liquid as the table said... ??
i labelled placenta and pericarp, are they correct????
i drew 3 diagrams to describe to show changes until fertilization but the stigma was not the shape as in the diagram..! how many marks would i get??..any idea..?
I'm hell confused :? :?

 

[miracle]

v had to draw carpel further v had to label......a guy beside me drew the whole flower and labeled it.....it was an insect pollinated flower becoz stigma was small and anther were not protruding......the precautions for accurate result were to use clean apparatus, use of stirrer,insulated handle,repetition pf the exp. and takin ave.,the thermometer should b in 1/3 of the water and water should b about 20cm3.....
this question was frm i guess 2006 paper......and ans r frm cie

 

[hassam]

insulated tube was written in redspot. is it ryyyyt.it is done to ensure that all the energy released by food is absorbed by da water nd not released into surroundings

 

[miracle]

i havnt read tht in redspot but i hav read frm cie ans tht an insultation around these appaaratus should b used in order to avoid heat loss.

 

[ahmed786]

Paper went gud!!!

 

[hassam]

if anybody can't understand this fact that it was INSECT-POLLINATED then he shud open PAGE NO.68 fig.8.5.the diagram was a copy paste from there except that color for petals is given since it is coloured book.hope it will remove all the misconceptions

 

[OakMoon!]

people they asked for safety precautions... not something that'll increase the accuracy... one safety was that the mounting needle should hav an insulated handle so that hand doesnt burn... u may wear gloves... and such and baki u had to describe the exp.... and the fruit coulde have following labels : funicle, pedicle, sepals, pericarp, mesocarp and epicarp.... may be there r more... for thickness the milk could be passed through a funnel and time is noted... the last Q was something more practical thought... wen u leave milk in open for sometime it goes sour... so the ans was that the yogurt will solidify and go sour due to the further decrease in PH .... u cant say that all lactose was used... there was no evidence for it...

 

[JAMES SMITH]

YEAH FUNNICLE I REMEMBERED
DO U KNW ABOUT HISTONE ACID?? H2A

 

[UxaiR]

Guyx there are many answers in BIOLOGY ATP So dun get confused if your answer's are not matching with others.!!!!! :mrgreen: :mrgreen: :mrgreen:

 

[sahar]

m m m listen PPl......