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VladimirAG [237]
3 years ago
5

Prokaryotic cells are distinguishable from eukaryotic cells because prokaryotes do not contain:

Biology
2 answers:
Sphinxa [80]3 years ago
5 0

Answer: 1) prokaryotes have no membrane bound nucleus.

2) They do not have membrane bound organelles.

Explanation: prokaryotes have no nuclear membrane which is present in eukaryotic cell, therefore its genetic material is not enclosed by a nuclear membrane.

They have no membrane bound organelles such as lysosome, Golgi complex, mitochondria, chloroplasts, endoplasmic reticulum which are found in eukaryotes

MaRussiya [10]3 years ago
4 0

Answer: Prokaryotic cells do not contain:

- nuclear envelope

- membrane-bounded organelles

Explanation:

Unlike eukaryotic cells, Prokaryotic cells are found in unicellular organisms with a single chromosome, no nuclear envelope, no membrane-bounded organelles. They include bacteria and cyanobacteria.

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Que tipo de aislamiento reproductivo exhibe la mula?
bulgar [2K]

Answer:

<em>Aislamiento postreproductivo: Esterilidad del híbrido</em>

Explanation:

El concepto biológico de <u>especie</u>, en su definición, destaca que los ejemplares de una especie no pueden entrecruzarse con ejemplares de otra especie distinta, o bien, en caso de hacerlo, no hay éxito reproductivo.

Existen distintos mecanismos de aislamiento reproductivo, que son barreras que inhiben o interrumpen el flujo génico entre especies distintas. Se trata de caracteres biológicos propios de cada especie que previenen la reproducción con otras especies.

Estos mecanismos de aislamiento reproductivo pueden ser precigóticos o postcigóticos.  

  1. Pre-copulatorios o pre-cigóticos:
  • Ecológico o por aislamiento de hábitat;
  • Estacional o temporal;
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  • Por incompatibilidad de gametas.  

   2. Post-copulatorios o cigóticos:

  • Inviabilidad del híbrido;
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La mula es producto de la cruza entre dos especies distintas: una yegua (<em>Equus ferus caballus</em>) y un burro (<em>Equus africanus asinus</em>). Es un ejemplo de la accion de mecanismo poscigótico, en el cual se forma un híbrido viable esteril. Este ejemplar puede nacer crecer y sobrevivir, pero que no pueden producir gametas funcionales, por lo cual no pueden reproducirse.        

4 0
2 years ago
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