Single cell

Esta animación nos muestra el aparato de Golgi en acción: un orgánulo presente en todas las células eucariotas que forma parte del sistema de endomembranas, es esencial para el correcto procesamiento y transporte de moléculas dentro de la célula.

chromosome

Antibodies have 2 identical light chains and 2 identical heavy chains held together via disulfide bonds. On tip of variable region (=tip of Y) is the Antigen-binding region= contains specific code (found by hypermutation= rapid code finding through trail and error) that is then clonally selected= type chosen for binding to antigen. Rest of antibody= constant region. Isotype switching= changing Ig isotypes (IgA, IgG, IgM, IgE, IgD).

My friend Donna called to tell me she wasn’t feeling well. She had congestion in her nose, a fever, and was feeling fatigued. She got tested to see if she had the virus. It was negative. She was disappointed. So, she took another test. Still negative. She said, “Damn it! I just want to get […]

CRISPR. Starting with its definition, we explain how this technology harnesses an ancient bacteria-based defense system — and how it will impact the world around us today