Top 50 CBSE class 12 political science MCQs with answers for high score in pre-board exam 2026

Students appearing for CBSE pre-board exams and board exams for 12th may find these multiple choice questions helpful. These ...
eLife

Conformational Variability of HIV-1 Env Trimer and Viral Vulnerability

In silico antibody accessibility analysis indicates that ectodomain epitopes are transiently exposed, while MPER epitopes are virtually always occluded in the pre-fusion trimer.