AS Level Biology: Topical Questions

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In a certain organism, two traits are determined by two pairs of alleles, each of which shows dominance. One trait is determined by some combination of the alleles A and a. The other trait is determined by some combination of the alleles B and b, which are located on a different chromosome from A and a. Construct a complete Punnett square to show the results of a cross between two parents with genotypes Aabb (parent #1) and AaBb (parent #2). Then determine each of the following:

a) What fraction of the offspring is expected to have the same genotype as parent #1?
b) What fraction of the offspring is expected to have the same phenotype as parent #2?
c) What fraction of the offspring is expected to be dihybrid?

Please help me, i have a test tmmw!!! if possible please mail me the answer at [email protected]
 
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can I get A-level (both AS and A2 topics) topical past papers along with marking schemes??........also, tell me what r variants?..which variants should I chose while in registration?
 
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Inshallah I am working on A2 topicals. I will upload all of them but after some time. Though you may have questions on respiration. See attached
Hi , thanks for the help with compiling the q . But have u uploaded the rest of the A2 chapter wise questions already ? Can someone send me the link for it ?
 
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uhm i really like the questions you have set up but do you happen to have the answers as well??
 
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hello sir.
it was really helpful but how we will get the marking scheme for these topical pastpapers.
i currently want the marking scheme of As chapters.
i hope to get a fast response.

thanks/usman
 
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hello sir.
it was really helpful but how we will get the marking scheme for these topical pastpapers.
i currently want the marking scheme of As chapters.
i hope to get a fast response.

thanks/usman
That member hasn't uploaded any answers but for a few chapters I made the answer key (for MCQs ONLY).
Check these posts:
https://www.xtremepapers.com/commun...gy-topical-questions.32984/page-3#post-905252
https://www.xtremepapers.com/commun...gy-topical-questions.32984/page-3#post-910696
I will be putting up the answers for Smoking and Infectious diseases soon In Sha Allah.
But for A 2 Biology topicals the marking scheme is there too if I remember correctly.
 
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As I promised, I am uploading the rest of AS Level Biology Topical Question Bank.
Now all the topics from A to K are uploaded.
Hope you will find them useful.
Keep on the hard work.

I have selected those questions which will make your concept clear and will form a clear image in your mind about how the examiner asks questions.
I will also be uploading Revision Question Bank shorty. Till then stay tuned.



Warm Regards,
Waleed Ahmad Khan
Edwardes College Peshawar
Hello, please the files are not opening or me, and I would really love to have those questions,
Please send it to my email iff possible. [email protected]. Thank you very much
Please reply.
 
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