Evolution of Multi-cellularity and Sex

Here is a short, interesting article in National Geographic about a genus of algae, Volvox, and a particular species (V. carteri) with two sexes. With one gene, MID, being switched off in males or inserted in females there was a change in the gametes – males produced eggs, females produced sperm.

So in the case of this algae, sex was controlled by just one gene. But lest we think things are this simple, the article mentions that multi-celluarity evolved about a dozen times: so we can assume that there may be (at least) a dozen different ways that sex is determined and expressed – since multi-celluarity usually goes with sexual reproduction. I think I’ll try to find out the different times that multi-cellularity evolved.

Advertisements

About mutecypher

Old. Bold. Deal with it.
This entry was posted in Life. Bookmark the permalink.

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s