No 'read-more' to specific content type (eg page)
You can do this by removing the "teaser" mode and tweaking node--your_content_type.tpl file.

To remove the teaser mode: Go to "Structure > Content types > your content type"; 
click on "Manage display"  and "Custom display settings"; uncheck the "Teaser" checkbox.
This will display the content in the front page as is.



Now to remove the "read more" link, unset it in your node--your_content_type.tpl.

unset($content['links']['node']['#links']['node-readmore']);


This way you will not have "read more" link in your home and the whole content will be displayed for your content type.