All categories

2 years ago

Which of the following correctly describes Metaphase?

1 answer:

8 0

During the metaphase, chromosomes are taken to the equatorial plane, were they randomly line up. Option B. Mitotic spindle attaches to the chromosome's centromeres and lines them up in the middle of the cell.

<h3>What is the metaphase?</h3>

Metaphase is one of the cell division stages that follows the prophase and precedes the anaphase.

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

Once aligned, each chromatid joins with a microtubule of opposites poles and gets ready to go through the anaphase. Sister chromatids are held together until they reach the Anaphase.

Since chromosomes in this stage are well defined and can be observed in detail under the microscope, they are used to create karyotypes and identify chromosomal abnormalities.

These chromosomes have the typical X shape.

Among the options, the one that correctly describes the metaphase is Option is B. Mitotic spindle attaches to the chromosome's centromeres and lines them up in the middle of the cell.

You can learn more about the metaphase at

brainly.com/question/16992029

#SPJ1

You might be interested in

food and territory are balancing factors in an ecosystem what type of phenomena balance these factors

Elanso [62]

Answer:

uhh either natural and reproductive pretty sure it's reproductive

7 0

2 years ago

Scientists have changed the model of the atom as they have gathered new evidence. One of the atomic models is shown below. A pur

Ksju [112]

Answer:

A few of the positive particles aimed at a gold foil seemed to bounce back.

Explanation:

Some of the positive particles aimed at a gold foil seemed to bounce back which gives information to the scientists that some heavy particles present in the center of the atom which bounce back the positive particles. so from this evidence the scientists says that atom is divisible and having subatomic particles such as proton, electron and neutron. Proton and neutron is present in the center whereas electron is revolving around the nucleus of an atom.

7 0

3 years ago

Imagine that scientists have discovered an industrial pollutant that modifies the structure of a cell cycle checkpoint protein s

Nadya [2.5K]

Answer:

Carcinogenic

Explanation:

A carcinogenic substance is able to modify or damage the genome in a way which promotes the formation of cancerous cells. Cell cycle checkpoint proteins are very crucial for the progression of normal cell cycle. They check for any anomaly in their designated step and halt the process if it is detected. Repair mechanism is activated and cell cycle does not progress till the damage has been repaired.

Here, the pollutant alters the structure of these proteins such that they lose their function. They are not be able to stop cell cycle from progressing even if there is some damage in the genome. The cell divides and gives rise to more damaged cells. Eventually these cells lose their normal function and just keep dividing due to which their division rate becomes double of the normal rate. It can ultimately give rise to cancer which is why the chemical is carcinogenic.

7 0

4 years ago

Which of the following activities depend upon the availability of supplies of freshwater?

Cerrena [4.2K]

D., all of the above

4 0

3 years ago

Do migrant birds collide with<br> windows more frequently than<br> expected by their population?

SVETLANKA909090 [29]

Answer:

While looking for food and places to sleep, migrant birds might have more trouble

identifying windows and fly into them more often . However, it could also be that

there are simply more window collisions in the fall because there are more birds in

the area when migrant and resident birds co-occur in urban areas.

5 0

3 years ago