Maite Solé
June 21, 2007 08:10PM
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 ............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)

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Subject Author Views Posted

structural chromosomal alterations

Maite Solé 2077 June 21, 2007 08:10PM

Re: structural chromosomal alterations

Zafar Raja 856 April 11, 2010 02:34PM

Re: structural chromosomal alterations

Dr.Jaume Antich 862 April 16, 2010 10:40AM

Re: structural chromosomal alterations

muslih 1211 September 15, 2012 11:49AM

Re: structural chromosomal alterations

Muslih 826 March 04, 2011 06:07PM

Re: structural chromosomal alterations

Dr.Jaume Antich 835 May 16, 2011 04:20PM