Biology Paper 22 Discussion thread.

[Buland Iqbal]

I knw wat PLAB is bud....

I never doubted your judgement

 

[Sparky123]

InshaAllah, the mark scheme would have multiple answers for the answer, which many gave as fermentation.
MashaAllah, I wrote 'batch production', because antibiotic penicillin is specified in our syllabus, and fermentation is involved in non-antiobiotic manufacture too...

 

[passion hunter]

it was fermentation.....what did you guys write in the question where they said why the crops offsprings were FEW and SMALLER??

 

[Sparky123]

MashaAllah, I wrote more asexual reproduction, less variation/evolution due to same conditions.

 

[Snowysangel]

Since so many people wrote biotechnology, I really hope that they accept it. Besides, the antibiotics are a bio product which they excrete, so the answer should be excretion..I mean that's how they're produced :S

 

[thementor]

Since so many people wrote biotechnology, I really hope that they accept it. Besides, the antibiotics are a bio product which they excrete, so the answer should be excretion..I mean that's how they're produced :S

wat did u write about the one in commercially lupins are produced and have spikes etc

 

[Buland Iqbal]

it was fermentation.....what did you guys write in the question where they said why the crops offsprings were FEW and SMALLER??

Mutation has occured making the plants small. Environmental conditions also affect their appearance as the temperature is not appropriate for their growth and lack of sunlight making them small and fewer.

 

[Snowysangel]

wat did u write about the one in commercially lupins are produced and have spikes etc

Commercial lupins are produced sexually so they have greater colour variations and have more viable seeds, as opposed to wild lupins which are asexually reproduced...or maybe it was the other way round. I can't remember the question. It could've been cross and self pollination (but that was in the greenhouse question)...I really can't remember

 

[thementor]

how

Commercial lupins are produced sexually so they have greater colour variations and have more viable seeds, as opposed to wild lupins which are asexually reproduced...or maybe it was the other way round. I can't remember the question. It could've been cross and self pollination (but that was in the greenhouse question)...I really can't remember

how can wild lupins be asexually reproduced ....they reproduce sexually......i wrote abt genetic engineering in tht answer...

 

[thementor]

Commercial lupins are produced sexually so they have greater colour variations and have more viable seeds, as opposed to wild lupins which are asexually reproduced...or maybe it was the other way round. I can't remember the question. It could've been cross and self pollination (but that was in the greenhouse question)...I really can't remember

wat was the last part of Q6 in section B anyway...I cant remember.

 

[thementor]

Also no wrries guyz...this year the thereshold will also be low for A*....probably at 88-89% rather than above 90% as it was last year.

 

[Snowysangel]

how
how can wild lupins be asexually reproduced ....they reproduce sexually......i wrote abt genetic engineering in tht answer...

I don't know. I thought it was like that wild and cultivated bananas question in the past papers. Actually I'm not sure what I wrote...I keep confusing it with the crops question, which asked us why the plant grown in the large buildings are going to grow less or something

 

[thementor]

I don't know. I thought it was like that wild and cultivated bananas question in the past papers. Actually I'm not sure what I wrote...I keep confusing it with the crops question, which asked us why the plant grown in the large buildings are going to grow less or something

yeah....so i am nt the only one who was confused overthere ...again a huge sigh of relief.

 

[mohdumar]

Yeah i hope percentile would drop. Btw that question was so F, I felt like shooting Alexis Bidagan at clost range in his brains.

 

[Snowysangel]

yeah....so i am nt the only one who was confused overthere ...again a huge sigh of relief.

Lol lupins can be asexually reproduced btw...says so on google. Yeah the question asked why there's a wider variety of colors, so that's the first thing that sprang to my mind, especially after doing the cultivated and wild bananas question just a day before the exam

 

[Snowysangel]

Also no wrries guyz...this year the thereshold will also be low for A*....probably at 88-89% rather than above 90% as it was last year.

What? People got a 100% overall last year, like without the percentile? There are 3 people from my school who got a distinction :O

 

[thementor]

ha

Yeah i hope percentile would drop. Btw that question was so F, I felt like shooting Alexis Bidagan at clost range in his brains.

hahahahahahahaha.....

 

[thementor]

What? People got a 100% overall last year, like without the percentile? There are 3 people from my school who got a distinction :O

a 100% perfect score has never been recorded in the history of biology...highest score ever recorded was about 98%

 

[Snowysangel]

a 100% perfect score has never been recorded in the history of biology...highest score ever recorded was about 98%

That's pretty high too. My teacher told us that cie never gives u a full grade in the last 3 questions :S

 

[thementor]

That's pretty high too. My teacher told us that cie never gives u a full grade in the last 3 questions :S

exactly....marks are always deducted....no matter hw gd ur answer is....