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Ber [7]
2 years ago
8

Una pareja, con genotipos AB+- ella y OO+- él, tienen hijos. ¿Cómo pueden ser sus descendientes​

Biology
1 answer:
WINSTONCH [101]2 years ago
4 0

Los hijos de este cruzamiento pueden tener los siguientes genotipos AO++, AO+-, AO--, BO++, BO+- y BO--.

  • Los dos sistemas para determinar el grupo sanguíneo de un individuo son el ABO y el Rh.

  • El sistema ABO posee tres alelos (A, B, y O), donde el alelo O es recesivo y los alelos A y B son codominantes.

  • El Sistema Rh (Rhesus) posee 2 alelos o factores: Rh Positivo (+) y Rh Negativo (-). El gen Rh positivo es dominante.

  • En este caso, la madre posee el genotipo AB+-, con lo cual ella podría generar las siguientes combinaciones gaméticas: 1/4 A+; 1/4 A-; 1/4 B+; 1/4 B-

  • El padre posee el genotipo OO+- y por lo tanto podría generar las siguientes combinaciones gaméticas: 1/2 O+; 1/2 O-.

  • En consecuencia, en este caso, los genotipos esperados de este cruzamiento serán AO++, AO+-, AO--, BO++, BO+- y BO--

  • Por otra parte, los fenotípicos esperado serán A positivo (AO++ o AO+-), A negativo (AO--), B positivo (BO++ o BO+-) y B negativo (BO--).

Aprende más sobre este tema en:

brainly.com/question/22852761?referrer=searchResults

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