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liraira [26]
3 years ago
14

each chromosome originally is made of how many DNA molecules and how does this molecule appear in the chromosome

Biology
1 answer:
Kazeer [188]3 years ago
6 0

Answer:

each chromosome is composed of one coiled DNA double helix molecule, which is called a chromatid. At the end of this stage, each chromosome has two identical DNA double helix molecules, and therefore is composed of two sister chromatids

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It is to transport of two substrates in the same direction across the membrane.
RSB [31]

Answer:

Active transport

Explanation:

To transport the substrate across the membrane it will need energy in the process it's called active transport.

8 0
4 years ago
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A studenr wants to germinate seeds over the winter
Likurg_2 [28]

Answer:

D and B

Explanation:

We know that seeds need optimal amounts of water, oxygen, temperature, and light to germinate. Therefore the student would need to provide warmth because its winter and water because that would satisfy the need for moisture. Hope this helps!

Source: https://extension.psu.edu/seed-and-seedling-biology

4 0
2 years ago
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Which disease requires vaccinations and yearly boosters?
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Polyoma vaccine does the Polyomavirus. It’s recommend that parrots get this vaccine yearly.
4 0
3 years ago
Why can't astronomers measure the parallax of a star that is a million light years away?
motikmotik

One of the methods used widely to calculate the distance of nearby or closer objects in astronomy is Parallax. The distance of the stars are usually expressed in light years but the unit of distance is parsec or parallax second.  

                                        1 Parsec = 3.26 light years

Astronomers are not able to measure the parallax of a star that is a million light years away because the star is too far and the distance with which the start appears to move is too less to be calculated accurately.

6 0
3 years ago
Hydrolysis of carbohydrates you eat begin in your mouth as you chew. How do you think this process might be affected in a person
Luda [366]

Answer:

The carbohydrates will not be digested properly.

Explanation:

The kind of carbohydrates that a person takes from plants is in the form of amylose. From animals, a person will receive carbohydrates in the form of glycogen,

The digestion of carbohydrates begins as soon as the food is taken in the mouth by the amylase enzyme present in the saliva.

If a person does not have the salivary glands, then there will be no production of saliva and amylase enzyme. Hence, the carbohydrates will not be digested.

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