We have finished the school year with very good biology and geology results.
Furthermore this year we have tried with the experience of working with the blog, it has been useful as a class diary but also as our own brief encyclopedia or resources list to get information from.

If we check out the data we have edited 109 posts along the school year, it is astonishing the number of 23,450 up to today (june 30th) and the busiest day a total of 580 people came around our blog, it was on Tuesday, June 22nd, 2010.

Looking at the graphs either by weeks or by months we can remember the hard beginnings when neither the students nor the teacher knew anything about blogging, little by little we started with the project in a calm way, just after Christmas we decided to reactivate the blog and since then our work and the number of visits has been increasing, in June (our last month with the project) we have achieved a number of 8480 visits.

I am proud of your work and by the beginning of the year I could not imagine such a success of this blog.

This is a project finished in the academical sense, but now you can feel free to keep on posting here your opinions, suggestions, interests, or whatever you feel like. Congratulations again for this great work, it has been a pleasure learning with you.

Enjoy the summer.

; –  )


This is the text about cloning that we have been working these days, you should read, underline and sum it up.

More info about applied genetics in the biodeluna post about it.

Enjoy guys, see u soon.

Image from


Ruth Moreno

(Tuesday, 2nd march) Today we have done the exam of GENETICS. The exam was composed by several questions such as:

  • 4 problems of genes related to blood, sex linked diseases and normal diseases such as albinism. One of them was related to gene schemes and the rest were related to punnet squares. One of the punnet square related one was similar to this:

In cats, black color is due to the gene, B, and yellow its allele b. Yellow is incompletely dominant to black and with the heterozygous condition results in a colour known as calico. What kinds of offspring would you be expected from a cross between a black male and a calico female?

B > b                                                   Male: XY (X: B)

Female: XX (X: B ; X: b)

Punnet square solutions:

50% (1/2) of the daughters: CALICO.

50% (1/2) of the daughters: BLACK.

50% (1/2) of the sons: BLACK.

50% (1/2) of the sons: CALICO.

  • Some test questions similar to those from the IGCSE but in these test questions you can have more than one correct answer (you have to mark all the correct answers).
  • Definition question. We had to define terms such as: allelle, heterozygous, genotyope…

(Thursday, 4th march) Today we have gone to the computers room. The teacher has given up the exams and we revise them and check our mistakes.

During the lesson, Fernando has given us instructions for the work we will have to do during the holydays (Friday, Saturday, Sunday). The work is in groups so we have made four different groups of 4 people each.

Next Monday is 8th March the day of  International women´s day. Because of this day we are going to make 4 different works (each group a different one) related to the influence of WOMEN IN SCIENCE. The four different works are: WOMEN IN SCIENCE, ECOFEMINISM, NATIONAL IMPORTANT WOMEN AND INTERNATIONAL IMPORTAN WOMEN.

We have use today’s lesson to start the work and organize how the group is going to work.

Sorry for been late,

Ruth Moreno

Yeah guys, we did it!

Our aim for this new year was to reactivate our classroom blog and according to the monthly statistics chart that you can see here. We did it, indeed.

I have to thank you for pushing this project with your effort and your time and I can tell you that there are people  who are really proud of your work (me included, of course).

So, I encourage u to keep on working like this.

Then a new tasks calendar…

  • Next week: Paula and Perseo are in charge. Paula will do the doubts task and Perseo the summary.
  • And the first week of march (shorter week that one, including an exam in it), it will be Ruth who is in charge of both tasks (summary plus doubts)

After the Cincormarzada we get a new order.

Image from here

I undertand a web, or a blog, like a fractal structure, I love the way they connect one web-page to a different one, and tend relationships between them. I also like the sharing power of this new technologies, so that we can make the world know what our interests are, what pages we visit, which ones are useful, which ones are funny.

Then I invite you to share your favorite WEBS to be added as a LINK in our side bar. OK? (interests, hobby, fun, useful, tools, whatever you want to recommend to anyone hanging around here). Let´s share them.

You can post them as a comment to this post, or you can email them to me or just write it on a paper and give it to me.

It´s  me who starts. – This is  an on-line dictionary, I use it a lot: – I also like visiting this blog it is mainly about environment (the author is from Aragon) and he also likes sharing some other interests  as television, music or gadgets.

Finally, they are not related to natural science but we can also share here some personal interests, I like these two artists, they are awesome: Spanish photographer British street artist

Looking forward to visiting your favourite links

I solve this one:

Last thursday, during the lesson Rubén asked me something as
“How many pair bases do we find per helical turn in DNA?

He was confused because not all DNA drawings have the same proportions so the question could be simplified as “Which one of these two images is more realistic?

I answered Rubén´s question doubting a bit with a number between 3 and 4, and I am sorry but I was mistaken, may be I was thinking in the 3.4 Å that is the average distance between base pairs, or may be I was mistaken because each DNA turn is also 3.4 but in this case nm, anyway…

The correct answer to the question:
How may base pairs are in a “normal” DNA molecule per complete turn?
It is 10 bases per turn.

You have the whole data to answer this, for example here.

Thanks for questioning, that make us improve.

Watson and Crick discovered the DNA structure.


Some time later they awarded the Nobel Prize.


and who with?

There is a fourth person (a woman called Rosalind Franklin) that is linked to this discovery in a controversial way, in fact she was usually neglected, could you find and sum up some information about this interesting matter.

X-ray diffraction image of nucleic acid
 (picture taken from this site )