Summer School Biology - CH 9 - Section III and IV

What genetic disorder causes the secretion of excess mucus?

• sickle-cell disease

• Huntington disease

• cystic fibrosis

• Tay-Sachs disease

People with Huntington disease develop deterioration of the __________.

• brain and nervous system

• reproductive organs

• circulatory system

• heart

What disorder causes excessive bleeding due to the inability of blood to clot?

• Tay-Sachs

• hemophilia

• cystic fibrosis

• sickle-cell anemia

The use of special biochemical techniques to modify genes is called ___________.

• cross breeding

• technical engineering

• genetic engineering

• outbreeding

The test for Huntington disease is a search for a section of DNA called a _________.

• code

• gene map

• base

• marker

How can gene therapy help cystic fibrosis patients?

• by replacing faulty genes with healthy genes

• by engineering faulty proteins

• by introducing mucus resistant bacteria into the lungs

• by creating virus resistant genes

How do genetic engineers ensure the safety of their work?

• by engineering organisms that cannot survive outside the labratory

• by properly disposing of laboratory wastes

• by wearing protective gear to guard against infection

• all of the above

Genetically engineered proteins that bind only to certain types of cells may be useful in the treatment of __________.

• birth defects

• cancer

• hemophilia

• Huntington disease

Scientists can help people with heart disease by genetically engineering bacteria that ________.

• slow down the heart rate

• make insulin

• make a protein that clears clogged arteries

• raise HDL cholesterol levels

Unlike the insulin extracted from farm animals, genetically engineered insulin causes no __________.

• allergic reactions

• change in human blood chemistry

• metabolism of sugar

• sleeplessness