× Didn't find what you were looking for? Ask a question
Top Posters
Since Sunday
z
4
n
4
t
4
k
3
x
3
r
3
m
3
j
3
c
3
l
3
e
3
s
2
New Topic  
azzam_mokhtar@y azzam_mokhtar@y
wrote...
Posts: 806
Rep: 1 0
6 years ago
The HbS allele increased in frequency in West African populations due to which of the following?
 
  a. sickle-cell anemia
  b. genetic drift
  c. migration
  d. increased mutation rates
  e. natural selection
Read 44 times
1 Reply

Related Topics

Replies
wrote...
6 years ago
e
New Topic      
Explore
Post your homework questions and get free online help from our incredible volunteers
  578 People Browsing
Related Images
  
 174
  
 324
  
 306
Your Opinion
Which is the best fuel for late night cramming?
Votes: 231

Previous poll results: What's your favorite coffee beverage?