Foros de La Genetica.info :: lagenetica.info Forums (English)

Maite Solé Wrote:
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> Chromosomes within a cell are arranged in sets.
> Each cell contains 46 chromosomes or 23 sets. 
> Such sets of chromosomes are classified according
> to an international nomenclature: from the largest
> to the smallest, followed by sex-chromosomes. 
>  
> As you can see, we have:
> two number 1 chromosomes,
> two number 2 chromosomes,
> two number 3 chromosomes,
> and so on for all sets.  
> 
>  
>  In structural chromosomal alteracions  the 
> chromosomal distribution is correct but  a 
> chromosome  could be  defective because many
> things can happen to him.
> 
>  All the things that can happen have different
> names. If it is missing a tiny part (this
> alteration  is known as
> "deletion");............................ If it
> is..........
> 
> For further information go
> to.......www.geneticsmadeeasy.com ............and
> clik on  the following buttons of the index web:
> 
> Introduction - The origin of life - Cell
> specialization - Chromosomes - How do we acquire
> our inheritance?........- Questions  (number 28) 
> 
> If you click on the different buttons appearing,
> you will find information, animations and links
> relating to the subject matters. This information
> will help you understand what each of the
> techniques is and what it is used for. Flash
> Player is required to see the animations. If you
> do not have this program in your computer, you may
> download it directly from our homepage.