Most defects in beta thalassemia are a result of what genetic ...

[roselinechinyere27m]

Most defects in beta thalassemia are a result of what genetic defect?
 
  a. Loss of gene expression because of promoter region methylation
  b. Point mutations in regions of the DNA controlling gene expression
  c. Deletion of the structural globin gene
  d. Omission of the alpha globin chain

Question 2

All of the following can lead to the development of thalassemias except:
 
  a. Deletion mutation
  b. Substitution mutation
  c. Exposure to a mutagenic agent
  d. Frameshift mutation

[nixon_s]

Answer to Question 1

Correct Answer: B

Answer to Question 2

Correct Answer: C