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Kruka [31]
3 years ago
9

Explain how two pea plants with round yellow peas can, when crossed, produce offspring with the recessive traits—green wrinkled

peas. Use a Punnett square in your explanation.
Biology
1 answer:
Hunter-Best [27]3 years ago
3 0
The global positioning system ( GPS)
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En el hombre el color negro de los ojos “A” domina sobre el color azul “a” Una pareja en la que el hombre tiene los ojos negros
umka21 [38]

Las respuestas a estas preguntas son:

a) Genotipo del padre Aa (ojos negros)

b) Cruzamiento: Aa (padre) x aa (madre)

c) Frecuencias genotípicas esperadas: 1/2 Aa; 1/2 aa  

En genética, dominancia completa se refiere al proceso  de herencia en la cual un individuo heterocigota, es decir, el individuo que presenta dos alelos diferentes para el mismo gen, presenta el mismo fenotipo que un individuo homo-cigota para el alelo dominante (el alelo dominante es aquel que enmascara la expresión del alelo recesivo en individuos heterocigotas).

En este caso, el carácter 'color de ojos' presenta un patrón de herencia monogénica, donde el alelo 'A' dominante codifica para el rasgo fenotípico ojos negros, mientras que el alelo 'a' recesivo codifica para el rasgo fenotípico ojos azules.  

En el ejemplo, la pareja tuvo progenie en la cual uno de los hijos presenta el rasgo recesivo ojos claros, con lo cual el padre debe ser heterocigota y poseer un alelo recesivo 'a'; mientras que la madre expresa el fenotipo recesivo y por lo tanto su genotipo es 'aa'. En consecuencia, el cruzamiento de un padre heterozigota 'Aa' con una madre homo-cigota recesivo 'aa' producirá una descendencia con una frecuencia genotípica esperada de 1/2 (50%) de hijos con ojos 'color negro' de genotipo Aa y 1/2 (50%) de hijos con ojos 'color celelste' de genotipo aa >>

Cruzamiento: Aa (padre) x aa (madre)

Gametos padre: 1/2 A; 1/2 a

Gametos madre: 100% a

Cuadro de Punett (combinaciones gaméticas):

                  A           a

a               Aa          aa

a               Aa          aa

En consecuencia,  este cruzamiento producirá 50% individuos ojos color negro (genotipo Aa) y 50% individuos con ojos color celelste (genotipo aa)

Podés encontrar más información sobre este tema en:

brainly.com/question/22398195?referrer=searchResults

7 0
2 years ago
When treating a baby with cleft lip and/or palate, the goal is to ensure the baby can do which of the following?
RoseWind [281]

Answer:

All of the above

Explanation:

6 0
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The diagram below represents a top view of a river a emptying into an ocean bay. A - B is a reference line along the bottom of t
satela [25.4K]

Answer: D

Explanation: it’s the size of the sediments

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3 years ago
What is Metabolism? In a simple answer.
Airida [17]

Answer:

Metabolism is the process by which your body converts what you eat and drink into energy.

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Which statement below is correct about the digestive system?
denis23 [38]

The right answer is B) Specialized tissues come together to create the stomach, which is an organ.

* Cells linked to each other form a set called tissue. The cells composing a tissue are not all identical, but they work together to provide a specific function.


* Each organ is a recognizable structure (eg, heart, lungs, liver, eyes, stomach) that provides a specific function. An organ consists of different types of tissues and, therefore, different types of cells.

The stomach is a thoraco-abdominal organ, located in the abdomen and in contact with the chest wall.

The stomach is a dilated segment of the digestive tract located between the esophagus and the duodenum. Its main function is to turn the food bolus into a mixture called gastric chyme.

The stomach is composed of two parts, two sides (anterior and posterior), two edges (small and large curvature) and two orifices (the cardia, upper orifice, and the pylorus, lower orifice).

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