0
   

Confusion about Androgens preceding Estrogens and Evolutionary History

 
 
Piligin
 
Reply Sat 7 Nov, 2015 01:11 pm
Wikipedia says androgens are the precursor to all estrogens. Lampreys, however, a type of fish said to have evolved 450 million years ago, have an estrogen receptor but not an androgen one. Are the estrogens still converted from androgens in this species, or have many species that have come thereafter developed an interesting, albeit not fundamentally required, way to create estrogen?
  • Topic Stats
  • Top Replies
  • Link to this Topic
Type: Question • Score: 0 • Views: 627 • Replies: 1
No top replies

 
Blickers
 
  1  
Reply Sun 20 Dec, 2015 01:19 am
@Piligin,
When they say "precursors", they mean chemicals that can be broken down to produce estrogen after undergoing certain processes. It does not necessarily mean that animals used androgens before they used estrogen.
0 Replies
 
 

Related Topics

New Propulsion, the "EM Drive" - Question by TomTomBinks
The Science Thread - Discussion by Wilso
Why do people deny evolution? - Question by JimmyJ
Are we alone in the universe? - Discussion by Jpsy
Fake Science Journals - Discussion by rosborne979
Controvertial "Proof" of Multiverse! - Discussion by littlek
 
  1. Forums
  2. » Confusion about Androgens preceding Estrogens and Evolutionary History
Copyright © 2018 MadLab, LLC :: Terms of Service :: Privacy Policy :: Page generated in 0.03 seconds on 11/18/2018 at 07:28:56