AQA AS BIO Unit 2 OLD SPEC RESIT Tue 7th June (pm) 2016

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Right I've got the chemistry unit 2 resit on Friday to revise for. Good luck for the rest of your exams everyone, we can only hope that the grade boundaries for this exam will be low but either way what's done is done x

Reply 281

Kwaks

Someone just tell me the answers to the dog breed questions. Please 😭

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Reply 282

Sniperdon227

Original post by dani0107

Was it 1722 bases for Haemoglobin

1722% not the correct answer

Reply 283

fugeefari

Original post by idk97

aLSO how can the answer to the DNA arb units one be "Some cells were undergoing DNA replication whilst other cells had finished/not started it" when it said the cells were undergoing mitosis during that time??and replication doesnt occur in mitosis only interphase?

Exactly what i was thinking. What is this trickery AQA?

Reply 284

Kwaks

Original post by dani0107

Was it 1722 bases for Haemoglobin

It was only for one polypeptide in haemoglobin not the whole things. Sorry

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Reply 285

bluhbluhbuh

Original post by Kwaks

Someone just tell me the answers to the dog breed questions. Please 😭

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tell me the question and i will tell you the answer, padawan

Reply 286

Kwaks

Original post by lahigueraxxx

You doing ocr salters b?????

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Reply 287

dani0107

Damn, still think i got above 50, you think thats enough for an A,

Reply 288

Kwaks

Original post by bluhbluhbuh

tell me the question and i will tell you the answer, padawan

Was something about the mini terriers being bred from bull terriers. And using data to explain the genetic diversity.

There was also using the data in the table to describe the genetic diversity data shown in the table. 😭

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Reply 289

member911680

what did people write for how can scientists increase reliability of the results

the two hypothesis

how is the plant thing that they gave us formed

Reply 290

Kwaks

Original post by dani0107

Damn, still think i got above 50, you think thats enough for an A,

I hope so

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Reply 291

Kwaks

Original post by member911680

what did people write for how can scientists increase reliability of the results

the two hypothesis

how is the plant thing that they gave us formed

For reliability thing I said use a larger sample size and use a different river and see if the results are the same

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Reply 292

Suits101

Original post by Kwaks

Someone just tell me the answers to the dog breed questions. Please 😭

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I spoke about the SD of two breeds of dog overlapped, so the mean genetic difference or whatever was not significant
I then identified the breed of dog having the highest and lowest mean genetic difference or whatever

Reply 293

CourtlyCanter

Original post by Suits101

Good!

I drew two circles.
First circle I wrote:

Genus; Tiger - whatever it was, Clouded leopard - whatever it was
Then I did the same for the second circle but with species :smile:

Let's hope that's okay. I don't recall seeing a question like this in pass papers, then again I didn't do all of them. :cookie:

Reply 294

lahigueraxxx

Original post by Kwaks

You doing ocr salters b?????

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Nah AQA

Reply 295

Kwaks

Original post by Suits101

Damn you're meant to do two standard deviations? I did one 😭😭😭😭

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Reply 296

Suits101

Original post by Kwaks

Damn you're meant to do two standard deviations? I did one 😭😭😭😭

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What do you mean?

Reply 297

Kwaks

Original post by Suits101

What do you mean?

Because if it did only one SD plus or minus none of them overlapped

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Reply 298

CourtlyCanter

Original post by Kwaks

My teacher always says it's better to 'kitchen sink it' (put as much as possible)

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Ah okay, just hoping I haven't put anything wrong down as that would be counter-productive. And I wonder what kind of kitchen sinks you guys have at school haha :wink:

(edited 7 years ago)

Reply 299

bluhbluhbuh

Original post by Kwaks

alright bro prepare yourself, i wrote:
Both could've been exposed to different environmental factors therefore causing a mutation or natural selection (favouring an allele with better survivability) in those conditions; allele frequency increases through reproduction and becomes dominant.

something like that, and

Standard deviations of dog 4 and2 overlapped (can't remember names, ithink it was those) therefore showing the difference may not be signficiant and due to chance. The doggy with the greatest genetic diversity was the one with the highest value, had the smallest SD therefore most consistent data too. The doggy with lowest value had the lowest genetic diversity.

i'm just being hopeful, please let me know if you got something else so i can go cry about it over my mcdonalds milkshake