Is it possible for a group to be added to an group in Unix? Specifically, I'm on HP-UX. Here's a better illustration of my question:

/etc/group:
-------------
wheel:*:0:root,adm
bin::1:root,bin,daemon,
daemon::2:root,bin,daemon,
sys::3:root,bin,adm,
adm::4:root,adm,daemon,jenkins
tty::5:
www:x:6:bob,roswell1329,adm

In the above example, the group www contains another group adm. Is this possible? Do I have to use the GID of the adm group instead? If I had a directory called scripts that was owned by www:www (user www and group www) and in mode 770, would user jenkins from the above /etc/group file be able to run scripts in the directory? Normally, I'd just test it myself, but I'm at work and I would have to put a request into the platform team responsible for this server. I also googled this topic, and nothing was really on point. Any help would be most appreciated!