Sickle cell disease is caused by a:

A. change in one allele.

B. change in the size of a chromosome.

C. change in two proteins.

D. change in the number of chromosomes in a cell.

Question

Sickle cell disease is caused by a:



A. change in one allele. 
 
B. change in the size of a chromosome. 

C. change in two proteins. 
 
D. change in the number of chromosomes in a cell.

darrenmadx · Answer

I think its B

koikkara · Answer

hmm.... Sickle cell disease is caused by a genetic abnormality in the gene for hemoglobin, which results in the production of sickle hemoglobin but be careful, and why b ?

darrenmadx · Answer

For me its more of a guess. i'm not great when it comes to biology

shikamaru11 · Answer

it's C change in two protiens valine for glutamic acid :)