Name:_______________________________

Internet Biology/Genes 2

The Human Transcript Map -- http://www.ncbi.nlm.nih.gov/science96/

 

Scroll down to the bottom of the page.  On the bottom, right-hand side is a "browse by chromosomes" section.  Access the chromosomes by clicking on the numbers in that section.  Answer the following questions on a separate piece of paper.  Use a dictionary if necessary.

 

1.        Chromosome 21/Lou Gehrig’s disease/after clicking on chromosome 21, click on SOD1.

 

What is Lou Gehrig’s disease?

 

 

 

Why is this called Lou Gehrig’s disease?

 

 

 

 

 

2.        Chromosome 12/Phenylketonuria/after clicking on chromosome 12, click on PAH.

 

What is Phenylketonuria?

 

 

 

Why do we screen newborns for Phenylketonuria (PKU)?

 

 

 

 

 

3.        Chromosome 7/Cystic Fibrosis/after clicking on chromosome 7, click on CFTR.

 

What is Cystic Fibrosis?

 

 

 

What would be the benefit of being tested for the CF carrier gene?

 

 

 

 

 

4.         Choose three different chromosomes and define a disease associated with those chromosomes.   Describe the advantage or disadvantage of carrying that gene.  Use the back of this page if needed.

 

 

 

 

 

 

 

 

 

 

 Click here F to return to Genetics Activity.