Biology; Chemistry; Physics: Post your doubts here!

[multixamza01]

People! Need someone to explain Alleles in detail. Explain what Dominant/Recessive Alleles are . Also , especially , tell me what are homozygous and heterozygous phenotypes? I know what they are but cant understand how these are involved in Heredity.

 

[Mashiiyangyang]

SnowBrood, there is no such thing as copper deposit on the other side and the water level will rise. The answer is C. Electrolysis of Dilute Sulphuric acid ( water) . Because the ratio of Oxygen to Hydrogen is 1 : 2. Therefore you can actually see a obvious gap between two testtube. I hope my explaination is clear

 

[scouserlfc]

SnowBrood, there is no such thing as copper deposit on the other side and the water level will rise. The answer is C. Electrolysis of Dilute Sulphuric acid ( water) . Because the ratio of Oxygen to Hydrogen is 1 : 2. Therefore you can actually see a obvious gap between two testtube. I hope my explaination is clear

No he is saying that if we use do CuSO4 electrolysis in this chamber the water level shud rise,he was not telling the answer he told the correct answer on the previous page !

 

[scouserlfc]

People! Need someone to explain Alleles in detail. Explain what Dominant/Recessive Alleles are . Also , especially , tell me what are homozygous and heterozygous phenotypes? I know what they are but cant understand how these are involved in Heredity.

I think you might want to ask some A levels people on the forum as i think im the only Bio guy here and i havent done that topic yet so if u need help quick u will have to ask them

 

[CaptainDanger]

People! Need someone to explain Alleles in detail. Explain what Dominant/Recessive Alleles are . Also , especially , tell me what are homozygous and heterozygous phenotypes? I know what they are but cant understand how these are involved in Heredity.

Don't you have the book?

 

[multixamza01]

Did the book! Didn't help! That's why i'm here :x .Badgering People for help!

 

[CaptainDanger]

Did the book! Didn't help! That's why i'm here :x .Badgering People for help!

Teacher? I am not good at Biology!!!

 

[multixamza01]

school is off these days. wanted to be done with studies so i can start past papers. We haven't done the chapter in school yet.

 

[CaptainDanger]

Oh right... Lets hope someone helps out...

 

[AtemisDelta]

well this a ppt explainin evry thin abt da inheritenc chp wass vvvv helpful to me im igcses
although ive not taken bio inn my a levels nn ive forgotten literally almosr ev

 

[AtemisDelta]

sorry pptsnot uploadin
tried several tyms

 

[CaptainDanger]

sorry pptsnot uploadin
tried several tyms

http://www.mediafire.com/

Upload here then paste the link....

 

[princesszahra]

what exactly is not working?

 

[not.maria]

This might help @multixamz01
http://library.thinkquest.org/C0118084/Gene/Genetic_variation/dominant_recessive.htm

 

[scouserlfc]

what exactly is not working?

The uploading of some attachment i think !

 

[princesszahra]

media fire or megaupload will work !!

 

[SalmanPakRocks]

wait as soon as the site is out of BETA mode, these bugs will be fixed.

 

[Abdullah Yousuf]

what do u mean? it totally depends upon what are u trying to obtain, however u cannot react Potassium,Sodium and Calcium with Acid otherwise explosion might occur.

I wanted to ask if we can react a radioactive element like Francium with acids or not
cause our chemistry teacher said we cannot do reactions with radioactive elements

 

[Abdullah Yousuf]

these are great notes for chemistry.
try to learn the salt preparation from these.

Thanks for these notes
They saved my life in my chemistry exams

 

[SalmanPakRocks]

I wanted to ask if we can react a radioactive element like Francium with acids or not
cause our chemistry teacher said we cannot do reactions with radioactive elements

Ofcourse we can't. I mean Francium is HIGHLY reactive metal and reacting it with Acid can cause Major blast.