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Neko [114]
3 years ago
5

Most organisms can be divided into two categories - prokaryotes and eukaryotes. What is the main difference between these two ca

tegories?
Biology
2 answers:
Pie3 years ago
7 0
Eukaryotic'so have a nucleus
Dafna1 [17]3 years ago
4 0
Prokaryotes and eukaryotes differ in terms of size, presence of nucleus, presence of golgi apparatus and other features. Prokaryotes are way smaller than their counterparts, and do not have nuclei and golgi apparatus
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A human cell undergoes one cell division by mitosis. The number of chromosomes in each of the two daughter cells is:___________.
Murljashka [212]

Answer:

Equal or same number of chromosomes as of parent cell

Explanation:

Mitosis is a type of cell division which divides the parent cell into two daughter cells with the exact or same number of chromosomes as of the parent cell.

Since the genetic material is distributed equally in the daughter cells therefore the mitosis is also known as equational division.

In the given question since the cell undergoes mitosis, therefore, the daughter cells will have the same or an equal number of chromosomes or ploidy level.

Thus, Equal or same number of chromosomes as of parent cell is the correct answer.

5 0
4 years ago
Un hombre que carece de la posibilidad de enrollar su lengua (ee) se cruza con una mujer heterocigoto para este rasgo que enroll
Valentin [98]

Answer:

50%

Explanation:

La información que tenemos es:

Un hombre homocigoto (ee) que carece la posibilidad de enrollar su lengua.

Una mujer heterocigota (Ee). Al tener dos copias distintas de este gen, la mujer puede enrollar su lengua ya que este es un gen dominante (E) sobre el gen recesivo (e) que impide este movimiento.

Si hacemos un Cuadro de Punnett veremos que la capacidad de enrollar la lengua en los descendientes de esta pareja tiene una probabilidad fenotípica del 50% ya que hay un 50% de probabilidades de que su descendencia tenga un genotipo Ee y otro 50% de que sea ee, lo cual se expresa en una probabilidad  fenotípica, es decir lo que se puede apreciar visiblemente como resultado de la interacción del genotipo y el ambiente, de con un 50% de poder enrollar la lengua.

<u>   ║e ║ e</u>

<u>E║Ee║Ee</u>

<u>e║ee║ee</u>

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6 0
3 years ago
Which part of the nitrogen cycle takes nitrogen from the soil to make amino acids?
Helen [10]
I Would go with Producers, since plants take nitrogen from the soil to make amino acids, & plants are considered producers. Hope this helps :)
5 0
4 years ago
Read 2 more answers
When looking at an active metabolite of a medication, such as 9-hydroxyrisperidone (paliperidone), how does it differ from the p
cluponka [151]

Paliperidone has low affinity for lipid-rich environments compared from the parent compound risperidone. Due to its hydrophilicity characteristic, paliperidone is capable of hydrogen bonding with other molecules containing water and hydroxyl groups. Lipophilicity is a determining factor for the rate and degree of metabolism of the drug in the body and for crossing the blood–brain barrier (BBB).

Moreover, these differences are implicated in synaptic plasticity and neuronal firing effects in the mechanism of mitochondrial movement, protein expression, and phosphorylation of the drug. Paliperidone as a mood stabilizer is an active metabolite of risperidone with antipsychotic effects used for the treatment of schizophrenia and its associated disorders.

<span> </span>

8 0
3 years ago
Desde captar el estimulo hasta efectuar una respuesta, la secuencia que sigue en el impulso nervioso es?
Elan Coil [88]

Answer:

creación de un potencial de acción (despolarización), redistribución de iones a través del soma y finalmente repolarización (estado de reposo)

Explanation:

Las neuronas son células nerviosas capaces de transmitir impulsos en forma de corriente eléctrica. Una neurona está compuesta por dendritas, el soma o cuerpo celular y el axón. Durante la transmisión del impulso nervioso, el estímulo es en primer lugar recibido por las dendritas, recorre el soma y termina en el axón. El impulso nervioso se transmite a través de la neurona mediante un proceso de despolarización. Primero, se produce un aumento de la carga eléctrica en el interior de la membrana neuronal debido al aumento de iones de sodio en el interior celular. A continuación, se produce la redistribución de iones dentro del soma, con lo cual la señal se va transmitiendo a lo largo de la neurona. Finalmente, cuando el impulso ha terminado de recorrer el axón, se produce la repolarización o estado de reposo, donde se produce el restablecimiento de las concentraciones iniciales de iones y la neurona vuelve a su estado inicial.

7 0
3 years ago
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