characterize Quiz

In addition, several studies have focused on ______________ the structure and function of lactococcal phage baseplates, as these tail-tip structures possess the receptor-binding proteins that determine the specific recognition of and initial interactions with their particular host(s) [15 –25 ].

On the other hand, we sometimes have occasion to observe the advent of the changes referred to delayed, and men arrive at the period of eighty, ninety, or a hundred years, or become, indeed, super-centenarians, without exhibiting those ______________ features to which, in their totality, we apply, as I have said, the term "age".