Meri

Cansada

[Tendencias y Tuits Borrados @tendenciaytuits]

🚨La Policía del Parque de EE.UU. está usando informantes para atrapar a gente que anda filmando el sellador en la piscina reflectante

Esta mujer acaba de ser DETENIDA después de ser atrapada.

[Niko McCarty. @NikoMcCarty]

The only rule in biology is that there are exceptions to every rule. This is what makes biology infinitely exciting; even when you think you’ve got the complete view, the floor can drop out from underneath you at any given moment.

Case-in-point: The nucleus is the thing that makes eukaryotes...well, eukaryotes. It's the part of the cell that stores the genome, separating DNA from the cytoplasm and other organelles. (Bacteria do not have nuclei.) For decades, scientists thought that each nucleus contains one or more haploid sets of chromosomes.

But there are exceptions. Red blood cells, for example, don’t have nuclei at all. (They expel their nuclei during maturation to maximize hemoglobin concentrations.) Cells in the eye lens, too, lose their nuclei and organelles during differentiation, thus becoming transparent. And so on.

But now there is yet ANOTHER exception to this rule, and it’s one I hadn’t seen before. For a study in Science, researchers discovered that two types of pathogenic fungi that infect plants, called Sclerotinia sclerotiorum and Botrytis cinerea, have two different nuclei. And instead of storing a full set of chromosomes in each nuclei, they instead “distribute their chromosomes such that each of their nuclei contains only a subset of the haploid chromosomes.” The authors confirmed this by throwing a kitchen sink of methods at these cells; chromosome counting, DNA measurements using flow cytometry, single-nucleus PCR, and more.

Nobody knows why the fungi do this, but the scientists claim (in their discussion) that it could enable them "to respond and adapt more effectively to local environmental stresses within their extensive mycelial networks. Nuclear shuffling may facilitate the rapid generation of new genotypes, enhancing adaptability to changing environments.” There is also evidence that the chromosomes within each nucleus may briefly collide during cell division, before going back into their separate nuclei.

This is a great paper. It is simple, to the point, and challenges the status quo. It has serious potential to become a “classic” of the genre.

Link: https://t.co/AtsN5Kufpl

[Meri @meriegm]

(91) Subido al campus todo el material hasta ahora. También las grabaciones y los videos para avanzar con glúcidos. Nos vemos el lunes!

[Meri @meriegm]

@Emily9058112250 Nos acaban de confirmar que será a las 8.00 hs

[Meri @meriegm]

FECHAS FINALES BIOLOGIA
Jueves 28/11
Martes 10/12

[Meri @meriegm]

Quedan las notas en cartelera para quienes no pueden venir.

[Meri @meriegm]

Cursos 91: Jueves 14/11
10.00 hs Entrega de notas, revisión de condición y revisión del 2do parcial. Aula 18

[Meri @meriegm]

Se levantó el paro, se suspende la clase virtual.
Mañana tendremos clases en la sede.

[Prof. Nikolai Slavov @slavov_n]

Timescales in Cell Biology

[Exactas UBA @Exactas_UBA]

[VIERNES de 9 a 17 h]

📢III Jornadas de Genómica Clínica
🧪 Abordaremos temas como: la implementación en centros de salud, la aplicación al diagnóstico clínico de enfermedades poco frecuentes y oncología, consideraciones éticas, legales y psicológicas, tecnologías de secuenciación y soluciones bioinformáticas.
🗣️ En la charla de cierre Alberto Kornblihtt hablará sobre "Terapia combinada de una enfermedad hereditaria sobre la base de modulación del splicing alternativo y del estado de la cromatina".

📌Aula 1401 del Cero+ Infinito y transmisión en vivo.

➕Info e inscripción libre y gratuita: https://t.co/K0cA8Mgyvd

👉Organizan: Departamento de Química Biológica / @iquibicen

[Meri @meriegm]

Pipis! Entren al foro a ver la última publicación :)

[Meri @meriegm]

@polariscopi0 Doy clase virtual o grabo o utilizo grabaciones.

[Smart Biology @SmartBiology3D]

Instructors, spend more time on creative thinking and leave the heavy lifting of understanding basic concepts up to us. Learn more at https://t.co/rZjuFXgP1n
#biology #science #3D #animation #EdTech

[Adenina @adenina18]

La coordinadora dará revisión del 1er parcial la semana próxima. Horarios: martes de 14 a 20hs, jueves de 10 a 14hs, viernes de 9,30 a 13,30hs. En laboratorio. Asistir con grilla de control.

[Meri @meriegm]

@BlandiGarro Felicitaciones!!! ☺️🥂

[Meri @meriegm]

Cursos 49101, 49104 y 49108: Enviado el link para la integración de mañana. Nos vemos a las 10 :)

[Liz Chrastil @chrastil]

A few years ago I was in a position to do something unique in neuroscience. I had been working with the phenomenal @emilyjacobs on menopause and inspired by @laura_pritschet's menstrual study, and I was planning a pregnancy. What if we scanned my brain??
https://t.co/mTLfToPhru

[Smart Biology @SmartBiology3D]

Learn about the different factors that affect membrane fluidity, including cholesterol!
Learn more at https://t.co/rZjuFXgP1n
#biology #science #3D #animation #EdTech

[Meri @meriegm]

@ezzequiel0717 Mañana tendremos clases :)

[Dylan Burnette @MAG2ART]

Actin filaments videoed through a microscope before their polymerization is inhibited (red), during polymerization inhibition (orange) and then after polymerization is restored (blue). This is the leading edge of a neuronal growth cone in cell culture. #CellBiology