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Author Topic: biology doute  (Read 1295 times)

Offline thepokerpro

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biology doute
« on: November 10, 2009, 10:45:44 am »
Can anyone help me with how to calculate the genotype in bio..

or calculating the genotype frequency??
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B4 i took I.G.C.S.E i knew how to do math without calculators..( :

Offline @d!_†oX!©

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Re: biology doute
« Reply #1 on: November 10, 2009, 10:49:50 am »
is that an IGCSE doubt???/??i have never seen anything like that in the syllabus or any past paper...
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Offline thepokerpro

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Re: biology doute
« Reply #2 on: November 10, 2009, 10:56:05 am »
yup its igcse....

ill give a link to the question...

please help...
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B4 i took I.G.C.S.E i knew how to do math without calculators..( :

Offline nits94

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Re: biology doute
« Reply #3 on: November 10, 2009, 10:58:46 am »
which past paper is it from?? I mean the year..
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Offline @d!_†oX!©

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Re: biology doute
« Reply #4 on: November 10, 2009, 11:02:23 am »
ohhh this ways....dude u scared me...u dont need any of those things that u asked..
just see that P is dominant and p is recessive
so the yellow can only appear is it is pp
now make a genetic cross for each of the options nd u'll see that for the C part
the results are PP,Pp,Pp,and pp
so only one on four is yellow...
nd as u can see that very rarely yellow sorns are found in the diagram so the answer dhould be C

tell me if u still dont get it
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Offline nits94

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Re: biology doute
« Reply #5 on: November 10, 2009, 11:06:54 am »
ya the answer is C.. but its not necessary to do it with that procedure as it takes time..sometimes u can just make out that there r a few purple and yellow sseds..so the parents genotypes should be hetrozygous that is Pp*Pp
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Offline @d!_†oX!©

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Re: biology doute
« Reply #6 on: November 10, 2009, 11:10:40 am »
ya nits even i do it dt ways...was just tru=ying to explain it to poker
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Offline thepokerpro

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Re: biology doute
« Reply #7 on: November 10, 2009, 12:00:16 pm »
lol...thanks... ;) ;) ;)

I was making it soooo complicated...

+ rep...


(By the way..do u give + rep by pressing the blue heart?? ??? ???)
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B4 i took I.G.C.S.E i knew how to do math without calculators..( :

Offline @d!_†oX!©

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Re: biology doute
« Reply #8 on: November 10, 2009, 12:03:40 pm »
ur welcome pokerpro...
nd yeah..dts how u do it...click on the blue heart.. :)
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Offline thepokerpro

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Re: biology doute
« Reply #9 on: November 10, 2009, 12:19:35 pm »
r u guys ready for bio paper 1...

DO u think its east??

What topics do u think will come??!!

 ;D ;D
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B4 i took I.G.C.S.E i knew how to do math without calculators..( :

Offline nits94

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Re: biology doute
« Reply #10 on: November 10, 2009, 02:15:06 pm »
I dont think the mcq paper will be tough seeing that p3 was HORRIBLE.. so mayb common topics will be touched this time u knw like reproduction, heart, reflexes, hormones, and all that :) best of luck 4 it :)
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