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Aloiza [94]
3 years ago
6

During --____________, chromosome are copy ones and the nucleus divides twice

Biology
1 answer:
Cerrena [4.2K]3 years ago
6 0
fertilization
since that is where chromosomes are copy ones and nucleus divided twice

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El pelo rizado en los perros, domina sobre el pelo liso. Calcular el porcentaje del fenotipo de los descendientes de una pareja
creativ13 [48]

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el pelo rizado en los perros domina sobre el pelo liso. una pareja de pelo rizado tuvo un cachorro de pelo tambien rizado y del que se quiere saber si es heterocigótico ¿ con que tipo de hembras tendrá que cruzarse?

4.6/5

296

El cachorro puede ser "Aa" o "AA". Se quiere saber si es "Aa". Para eso, tendría que cruzarse o con un homocigoto recesivo (aa), puesto que es el que da un 50% de probabilidades de que los hijos sean de pelo rizado.

Entonces, si se cruza con un homocigoto recesivo, la probabilidad de la descendencia debería ser 2 cachorros de pelo rizado y 2 cachorros de pelo liso.

La hembra tendría que ser de pelo liso para asegurarse de que sea homocigoto recesivo.

Si todos los cachorros salen con el pelo rizado, entonces el padre es homocigoto "AA".

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6 0
3 years ago
What was galilos contribution to the study of motion?​
In-s [12.5K]

Using the telescope, Galileo discovered the mountains on the moon, the spots on the sun, and four moons of Jupiter. His discoveries provided the evidence to support the theory that the earth and other planets revolved around the sun.

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3 0
2 years ago
In your opinion, is the nuclear membrane part of the endomembrane system? Why or why not? Defend your answer.
ipn [44]

Answer:

The correct answer will be- true.

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The endo-membrane system is the system which is formed by the group of the membranes and organelles.  These membrane and organelles are considered endomembrane as they work together to perform the inter-related functions like the packaging, modification ad transport of the lipids and the proteins.

This system comprises of the nuclear membrane also as the outer nuclear membrane is continuous with the endoplasmic reticulum (organelle) directly and helps the synthesis and modification of the proteins and lipids. other organelles are the Golgi apparatus, vesicles, lysosomes and endosomes.

Thus, option-true is the correct answer.

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In this case, Pulling your hand away from a hot stove could be dangerous, so you nervous system quickly reacts to take your hand away from the stove.
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