If the full text is available you should see a Full Text icon:
From databases: If no full text icon is immediately visible, to get to the full text of an article or e-book click the button.
From UC Library Search: Click available links under View Online: Full text availability.
Click on the View Online link to access the full text if it is available.
If there are multiple links available, it's recommended to choose the journal publisher link first from the alphabetical list.
The publisher's site will contain the most information about the article and the journal. If this link doesn't take you to the full text, try one of the other links.
To see if UC Berkeley has online access to a specific life sciences journal, you can enter the title in Journal Search: