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Cerrena [4.2K]
2 years ago
15

In which phase do sister chromatids line up in the middle of the cell, (in 'single-file', without a homologous partner)? Group o

f answer choices PROPHASE I INTERPHASE TELOPHASE II ANAPHASE II METAPHASE I ANAPHASE I TELOPHASE I METAPHASE II PROPHASE II
Biology
1 answer:
ipn [44]2 years ago
3 0

Answer:

The correct answer is ''METAPHASE I.''      

Explanation:

Metaphase I is the stage in which chromosomal studies are generally performed, because its morphology is very clear. The chromosomes, moved by the mitotic spindle, are placed in the center, between the two asters and form the so-called metaphase plate, in which the chromosomes are positioned in such a way that the kinetochore of each sister chromatid are oriented towards the opposite poles. Keeping chromosomes on the cell equator implies a balance between the forces of the microtubules that tend to move the kinetochores toward opposite poles, so positioning them in the center involves a great deal of energy.In each kinetochore, between 20-30 microtubules can be anchored, which exert traction force towards the pole from which they come, so the metaphase plate is maintained by the balance between the opposite forces of the poles on the chromosomes, which hold their sister chromatids by centromeric cohesin.

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Which could be a pathway of food through an ecosystem?​
algol13

Answer:

Sun > Grass > Deer > Lion

Explanation:

The sun begins a food chain because its light is needed for a plant, in this case grass, to grow.

An animal that eats grass is the deer, who is a primary consumer.

An animal that eats deer is the lion, who is a tertiary consumer in this case.

The lion has no natural predator, and thus is at the top of this food chain.

This ecosystem can be one found where grass, deer and lions exist, for example, the deciduous forest in the eastern United States.

6 0
3 years ago
Sand that extends from a coast into open water is called a barrier spit. <br> a. True <br> b. False
AysviL [449]
<span>It is True - Sand that extends from a coast into open water is called a barrier spit.

Barrier spits are formed when there is a deposit on the shoreline due to the lateral movement of water.

The waves are known to hit the shoreline at a particular angle which cause the lateral movement of water accompanied with the sedimentation along the coastline in the direction of the wave motion.</span>
6 0
3 years ago
Fossils help us reconstruct plant and animal life in the past as well as their evolutionary processes, which can be either slow
mezya [45]
The correct answer is

Stasis

Population becomes isolated

After rapid change in isolated population

Reintroduction
6 0
3 years ago
What is the primary type of macromolecule in the action and myosin that make up muscle cells
Akimi4 [234]

Answer:

I believe it is Protein.

Explanation:

Hope my answer has helped you!

5 0
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Module 6 Review
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