× Didn't find what you were looking for? Ask a question
Top Posters
Since Sunday
5
a
5
k
5
c
5
B
5
l
5
C
4
s
4
a
4
t
4
i
4
r
4
Home Q & A Board Biology-Related Homework Help Environmental and Conservation Biology
New Topic  
1needhelp 1needhelp
wrote...
Posts: 5
Rep: 0 0
11 years ago
biology help
Read 392 times
2 Replies

Related Topics

Replies
wrote...
#1
11 years ago
A biological bottleneck occurs when a population of a species is greatly reduced due to a natural disaster or by a small group of individuals being isolated from the main population. As a result of a smaller gene pool genetic drift occurs where the new popluation changes genetically so that they are not exactly like the original population. Typically even if the popluation recovers there is less genetic diversity resulting in individuals that are much alike.
wrote...
#2
11 years ago
cold_fearr has it right, but I want to add this.  The resulting decreased diversity results in a higher chance of inbreeding and a higher chance of getting homozygous recessive allele combinations--some of which can cause severe genetic problems--This is why inbreeding is so detrimental.
New Topic      
Quick Reply
Explore
Post your homework questions and get free online help from our incredible volunteers
  977 People Browsing
Start New Topic Take the Tour CoursesNew Study Tools Topics Trending Browse by Textbook
Live Chat
Related Images
  
 1710
  
 2194
  
 24
Your Opinion
What percentage of nature vs. nurture dictates human intelligence?
Votes: 431
Previous poll results: Who will win the 2024 president election?