scholarly journals Potencial didáctico de la filatelia para estudiar Genética Mendeliana

Author(s):  
Rafael Navajas Pérez
Keyword(s):  

Los sellos son el reflejo fidedigno de la historia y la cultura de la humanidad con un potencial didáctico aún por explorar. Aquí presento una experiencia docente que usa todos los sellos postales emitidos en honor a Gregor Mendel y los pertenecientes a series postales en las que este aparece (un total de 56 piezas de 13 países). Se elaboró un cuestionario con el que estudiantes de una asignatura de Genética básica de 2º curso del Grado en Biología trabajaron de forma autónoma la unidad temática de Análisis Genético Mendeliano. A continuación, se llevó a cabo una sesión de refuerzo para solventar las carencias detectadas tras la corrección de dicha actividad. Finalmente, se evaluó la experiencia usando una prueba tipo test de respuesta múltiple. Cuando las calificaciones obtenidas se compararon con las obtenidas por estudiantes de los cuatro cursos académicos anteriores que no habían utilizado este recurso, se obtuvo un incremento medio del 2,8% en las calificaciones (82,8% de respuestas correctas).  

2021 ◽  
Vol 113 (1) ◽  
pp. 107-135
Author(s):  
Bert Leuridan

Abstract Gregor Mendel, Thomas Hunt Morgan and experiments in classical geneticsIn the middle of the 19th century, Gregor Mendel performed a series of crosses with pea plants to investigate how hybrids are formed. Decades later, Thomas Hunt Morgan finalized the theory of classical genetics. An important aspect of Mendel’s and Morgan’s scientific approach is that they worked in a systematic, experimental fashion. But how did these experiments proceed? What is the relation between these experiments and Mendel’s and Morgan’s explanatory theories? What was their evidential value? Using present-day insights in the nature of experimentation I will show that the answer to these questions is fascinating but not obvious. Crossings in classical genetics lacked a crucial feature of traditional experiments for causal discovery: manipulation of the purported causes. Hence they were not traditional, ‘manipulative’ experiments, but ‘selective experiments’.


Author(s):  
Samir Okasha

There is no satisfactory one-line answer to the question ‘what exactly is a gene?’. The reasons why a precise definition is elusive are particularly interesting, and raise a number of philosophical subtleties. ‘Genes’ delves briefly into the history of genetics in order to understand them. It first looks at the work of Gregor Mendel in the 1860s and then the era of classical genetics in the 1920s and 1930s. It then moves on to molecular genetics, which came to fruition in the 1950s. How does the gene of Mendelian or classical genetics relate to the gene of molecular genetics? This question has long occupied philosophers of biology.


BMJ ◽  
1965 ◽  
Vol 1 (5431) ◽  
pp. 333-338 ◽  
Author(s):  
A. Sorsby
Keyword(s):  

2006 ◽  
Vol 25 (12) ◽  
pp. 655-658 ◽  
Author(s):  
Shannon Hackett ◽  
Kevin Feldheim ◽  
Mark Alvey
Keyword(s):  

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