Find an article that is relevant to this unit. Here are some possible topics

(1) Why do older mothers have a greater chance of having a child with Down’s syndrome (which is due to an extra chromosome 21).

(2) Find an article on a practical use of stem cells

(3) How has recombination mapping been used to identify disease genes?

Find an article on a specific condition (other than Down’s syndrome) that results either from an abnormal number of chromosomes or a chromosome rearrangement. Write a short summary of the article in your own words. Give the URL.

Post your summary as a reply to this blog.