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valina [46]
3 years ago
6

Arrange the stages of mitosis shown in the diagrams in sequential order. Use the ABCD labels on the drawings to indicate the ord

er.
A) a - b - c then d
B) b - c - a then d
C) b - c - d then a
D) b - d - c then a

Biology
2 answers:
OLEGan [10]3 years ago
6 0
B) b - c - d - a
The chromosomes multiply, line up, are pulled apart by microfilaments, then the microfilaments break down.
9966 [12]3 years ago
4 0

The correct answer is option (B) b - c - a then d.

Mitosis is a type of cell division occuring in the somatic cells of the body in which a cell divides into two daughter cells. Cell cycle consists of the interphase, mitotic phase (M phase) and the cytokinesis. M phase is divided into the prophase, metaphase, anaphase and telophase. In the image given above, the correct labelling is as follows-

b- prophase. Prophase is the first stage of mitosis characterized the condensation of the chromatin, disappearance of the nucleolus, nucleus and the appearance of the spindle fibres.

c- metaphase- Metaphase is characterized by the alignment of the chromosomes on the metaphasic plate across the equator of the mitotic spindle.

a- anaphase- Anaphase is characterized by the synchronous spiltting of the centromere and the separated chromatids start moving towards the poles.

d- telophase- Telophase is characterized by the formation of two nuclei, appearance of the nucleolus, nuclear envelop and the decondensation of the chromosomes.



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How has the study of mitosis affected scientists’ knowledge of cancer?
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Which of the following statements is true?
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3 years ago
Why does conduction occur more easily in solids and liquids, than in gases?
blsea [12.9K]

Answer:

Because liquids and solids are denser than gasses.

Explanation:

Solids and liquids are denser than gasses making it easier for things like sound to conduct through them. Being dense contributes to a better conduction because the particles and such within the solid or liquid are closer together which allows for things like sound to travel at a much faster rate because they're so much easier to vibrate.

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3 years ago
De acuerdo con lo anterior llene el siguiente cuadro comparativo señalando con x si las células procariotas o eucariotas posee l
Maurinko [17]

Answer:

El cuadro no está presente pero las diferencias principales entre células eucariotas y procariotas son:

Eucariotas:

Tienen núcleo

Tienen organelas

Tienen Vacuolas

Tienen Citoesqueleto

Tienen Cloroplastos

El ADN está asociado a proteínas

El ADN es lineal

Presentan mitocondrias

Presentan un sistema de endomembranas

Procariotas:

No tienen núcleo

No tienen vacuolas

No tienen cloroplastos

No tienen organelas

El ADN no está asociado a proteínas

El ADN es circular

Presenta mesosomas

Explanation:

Las células procariotas son más primitivas que las eucariotas, por ende, sus estructuras son más simples. Las células procariotas están en organismos unicelulares tales como las bacterias, mientras que las células eucariotas están en organismos unicelulares y pluricelulares como en plantas, animales, u hongos. La diferencia más notoria entre ambos tipos de células es la ausencia de núcleo en las procariotas haciendo que el ADN está disperso en el citoplasma mientras que en las células eucariotas, el ADN está dentro del núcleo celular.

4 0
3 years ago
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