Question

what is function of collar in bacteriophage​

Answer 1

Answer:

The collar and whiskers help to attach six long tail fibers to the phage particle during the virus assembly and control the retractions of the long tail fibers under conditions unfavorable for infection.

Answer 2

Answer:

Structure of the T4 collar and whiskers. ... The collar and whiskers help to attach six long tail fibers to the phage particle during the virus assembly and control the retractions of the long tail fibers under conditions unfavorable for infection.