Comments on: GCE O-Level 2009 Oct/Nov Chemistry 5072 & Biology 5094 MCQ Paper 1 Suggested Answers & Solutions

By: Little Miss Loi

Little Miss Loi — Fri, 12 Nov 2010 19:16:34 +0000

*waves*

By: Hello

Hello — Fri, 12 Nov 2010 15:50:56 +0000

Hi , will 5116 phy/chem mcq answers be up anytime soon ?

By: Vigneiswaran

Vigneiswaran — Mon, 01 Feb 2010 15:04:45 +0000

Got it..Replyd it :*)

By: Miss Loi

Miss Loi — Mon, 01 Feb 2010 14:55:00 +0000

Vigneiswaran, you've got mail

By: Vigneiswaran

Vigneiswaran — Wed, 27 Jan 2010 17:06:16 +0000

Teacher..cant I create another discussion board for my type of syallbus....the 5090....cause there are questions I wana ask you and I am quite afraid your students might get confused though..lol

By: Little Miss Loi

Little Miss Loi — Mon, 18 Jan 2010 05:42:35 +0000

Vigneiswaran: Yes you may take a photo of the question and send it to my sister's email and I'll take a look at it.

By: Vigneiswaran

Vigneiswaran — Sun, 17 Jan 2010 06:23:33 +0000

Urrmm...I am from Malaysia....Not taking the singapore syllabus....Urmm yea I do have the question with me....Shall post it to you??

By: Little Miss Loi

Little Miss Loi — Sat, 16 Jan 2010 12:22:36 +0000

Hi Andy,

Actually, if you see the diagram below, it's not purely by mathematical probability that the chance of a boy or a girl being born is 50%!

Let X and Y be the sex chromosome, Y being the male-determining chromosome in most mammals:

Vigneiswaran: Hmmm ... seems like your Q12 is different from mine. Are you from Singapore? The subject codes for Singapore's 2008 O-Level Biology papers are 5094 and 5100 (there's no 5090).

Do you have the question with you?

By: Vigneiswaran

Vigneiswaran — Tue, 12 Jan 2010 14:28:12 +0000

Hi teacher,

I am having problems with the Biology 5090 Paper 1 2008 OCT/Nov Paper Q12.I cant seem to differenciate which os the xylem and the phloem.

Thanks Guru...

By: Andy CL

Andy CL — Wed, 30 Dec 2009 18:07:07 +0000

Hello Ms Loi.
With regard to the biology paper 1, question 36, shouldn't the answer be (50%).
That's due to the fact that every birth is independent of each other and that the ratio that has been derived is based purely on mathematical probability.
Thus the chances of the girl getting it right would be a clear 50%, either a straight yes or a no.