The tasmanian devil has 14 chromosomes in each of its somatic cells, 2n = 14. how many chromosomes would be present in a cell after anaphase of mitosis? 28 7 14 21

Mitosis is the cell division event through which a diploid cell, 2n, first duplicates and then divides, producing two diploid daughter cells. At the end of anaphase, there are 14 chromosomes at each pole.

Let us first reviewe the steps of mitosis

Mitosis is a process by which, from a diploid somatic cell (2n), two daughter diploid cells (2n) are produced.  

First occurs duplication of the cell content, and then the separation into two new cells happens.

Mitosis occurs in only one phase.

• In the PROPHASE, it occurs chromosomes condensation and nuclear membrane breaks.

• During the METAPHASE, chromosomes are taken toward the center of the cell by the spindle apparatus. Once in the equatorial plane, chromosomes line up.

Each chromatid joins with a microtubule of opposites poles.

• In ANAPHASE, bonds between chromatids break. They separate and migrate to the opposite poles.

• In TELOPHASE, duplicated chromosomes are already in the corresponding poles, and the nuclear membrane forms again in each pole.

 

• Finally, cytokinesis occurs.

Now let us analyze the problem.

The somatic cell of the Tazmania devil has 14 chromosomes, 2n = 14.

During the interphase, the genetic material gets duplicated.In prophase, chromosomes condensate. There are 28 chromosomes.In metaphase, these 28 chromosomes get aligned in the center of the cell.During the anaphase, chromatids sisters separate, and each of them migrates to a pole.Finally, in telophase, there are 14 chromosomes in each pole.

At the end of anaphase and before telophase, there are 14 chromosomes in each pole.

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Answer:

9.9 years

step-by-step explanation:

a = p(1 + rt) . . account balance after time t at rate r starting with principal p

3000 = 2500(1 + 0.0202t) . . filling in the given numbers

1.2 = 1 + 0.0202t . . divide by 2500

0.2 = 0.0202t . . . subtract 1

0.2/0.0202 = t ≈ 9.901

it will take about 9.9 years for the account balance to reach $3000.

Mantle convection  is the slow  creepingmotion of earth's solid silicate  mantle  caused by  convection  currents carrying  heat from the interior  to the planet's surface.[1][2]  the earth's surface  lithosphere, which rides atop the  asthenosphere  (the two components of the  upper mantle), is divided into a number of  plates  that are continuously being created and consumed at their opposite  plate boundaries. accretion occurs as mantle is added to the growing edges of a plate, associated with  seafloor spreading. this hot added material cools down by  conduction  and  convection  of heat. at the consumption edges of the plate, the material has thermally contracted to become dense, and it sinks under its own weight in the process of  subduction  usually at an  ocean trench.[3]this subducted material sinks through the earth's interior. some subducted material appears to reach the lower mantle,[4]  while in other regions, this material is impeded from sinking further, possibly due to a phase transition from  spinel  to  silicate perovskiteand  magnesiowustite, an  endothermic reaction.[5]the subducted oceanic crust triggers  volcanism, although the basic mechanisms are varied. volcanism may occur due to processes that add buoyancy to partially melted mantle causing an upward flow due to a decrease in density of the partial melt.secondary forms of convection that may result in surface volcanism are postulated to occur as a consequence of intraplate extension[6]  and  mantle plumes.[7]it is because the mantle can convect that the  tectonic plates  are able to move around the earth's surface.[8]mantle convection seems to have been much more active during the  hadean  period, resulting in gravitational sorting of heavier molten  iron, and  nickel  elements and  sulphides  in the core, and lighter  silicate minerals  in the  mantle.