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Andrej [43]
3 years ago
6

What do centromeres attach to during metaphase

Biology
1 answer:
Ne4ueva [31]3 years ago
5 0

Answer:

spindle fibers

Explanation:

There are structures called spindles, which are long fibers that stretch out from the edge of the cell on either side and pull the chromosomes apart, separating them at the centromere, right in the middle. During metaphase, the cell is preparing for this process by attaching to the centromeres

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Why would cells die if they were unable to make (or otherwise obtain) the amino acid arginine?
kumpel [21]

Answer: Arginine is an amino acid that is incorporated into proteins. So if cells can not make or obtain arginine, the cell can not make proteins needed for survival.

Explanation:

Arginine is an amino acid used to build proteins, and it is classified as a semiessential or conditionally essential amino acid.

Proteins are large molecules consisting of long chains of amino acids. They perform many functions such as catalysing metabolic reactions, providing structure to cells and organisms, and transporting molecules, among many others.

Most notably, arginine is part of proteins that play an important role in many different processes such as cell division, immune function, wound healing and the release of hormones. <u>Without this amino acid, the cell cannot manufacture the proteins necessary for proper functioning</u>. So the cell dies because it cannot function properly.

6 0
3 years ago
How long after the formation of Earth did the first life appear?
djyliett [7]

Answer:

4.54 billon years

Explanation:

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6 0
2 years ago
What do geological principles tell you about inclusions?
Marizza181 [45]

Answer:

the answer is c

Explanation:

6 0
3 years ago
Read 2 more answers
In the Kirby-Bauer disk diffusion test, the _______ of the zone of inhibition is measured and used for interpretation.
snow_tiger [21]

Answer:

The correct option is : a. diameter    

Explanation:

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In this test, the wafers having antibiotics and the bacteria are placed on the agar plate and incubated. If the antibiotics present stops the growth of the bacteria, there will be an area around wafer with no bacterial growth, such an area is known as the zone of inhibition.

<u>The </u><u>diameter of this zone of inhibition</u><u> is measured to determine the </u><u>antibiotic sensitivity of the given bacteria</u><u>.</u>

7 0
2 years ago
Adh helps to conserve water during dehydration. <br> a. True <br> b. False
AlladinOne [14]
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6 0
3 years ago
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