Question 1

Marfan's syndrome is thought to be a mutation affecting

Accepted Answer

collagen synthesis

Question 2

BRACl, an inherited form of breast cancer, regulates cell division by

Accepted Answer

binding to the protein RAD 51 which repairs DNA damage

Question 3

Individuals with PKU disease are mentally retarded unless

Accepted Answer

phenylalanine in the diet is restricted

Question 4

Cyclins are proteins that

Accepted Answer

regulate passage from one stage of cell division to another

Question 5

Over 50% of common cancers are associated with damage to a protein, p53. This protein

Accepted Answer

is a tumor supressor

Question 6

The four subunits of the hemoglobin (Hb) gene represent protein's

Accepted Answer

quaternary structure

Question 7

Beta pleated sheets are examples of protein's

Accepted Answer

secondary structure

Question 8

Metastasis involves

Accepted Answer

all of the above

Question 9

Sickle cell disease is due to

Accepted Answer

a mutation in the beta chain of Hb

Question 10

Signal sequences are part of a protein that

Accepted Answer

transport proteins to other sites within the cell

Question 11

Protein folding is

Accepted Answer

mediated by other proteins called chaperones

Protein Structure Questions