giavanleer14
04.08.2019 •
Biology
11) purple flowers are dominant to white flowers in the jimsonweed plant. when a particular purple-flowered jimsonweed is self-pollinated, there are 28 purple-flowered and 10 white-flowered plants in the f1 generation. what are the genotypes of the parents? what is the phenotypic and genotypic ratio of the f1 generation
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Ответ:
a) Genotypes of the parents - Pp
b) Phenotypic ratio -
c) genotypic ration -
Explanation:
It is given that 28 purple and 10 white flowered plants are produced in first generation.
Thus, genotype of the parents could be
Pp X Pp
As only then offspring with genotype PP, Pp, Pp, pp will be produced.
Thus, the phenotypic ratio would as PP, Pp Pp are purple flowered plant while pp is white flowered plant.
Genotypic ration would be PP:Pp:pp
a) Genotypes of the parents - Pp
b) Phenotypic ratio -
c) genotypic ration -
Ответ:
Respuesta:
d) los genes están hechos de ADN
Explicación:
Los genes son segmentos definidos de secuencia contenidos en ambas cadenas de ADN los cuales codifican para un ARN mensajero (ARNm) durante el proceso de transcripcion y subsecuentemente son traducidos a proteínas. Estas proteínas son a su vez responsables de las características fenotipícas del individuo como por ejemplo, en este caso, el color de los ojos o la formación de hormona insulina.
Las leyes de Mendel constituyen el fundamento de la genética moderna y nos han permitido entender cómo se transmiten los caracteres hereditarios. Luego de los descubrimientos de Mendel, Boveri y Sutton comprobaron independientemente la veracidad de sus conclusiones y finalmente quedo formulado el concepto de gen como unidad básica de la herencia, asociando de este modo la transferencia de los factores mendelianos (alelos) con la segregación de cromosómica durante la división celular.