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rodikova [14]
3 years ago
5

Why is it necessary for DNA to replicate as the first step in mitosis

Biology
1 answer:
uysha [10]3 years ago
6 0
Interphase: in which it   grows and produces the protiens needed
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Identify the start and stop codons in the mrna sequence 5'-uauccauggcacuuuaaac-3'. what is the resulting amino acid sequence
Colt1911 [192]

Answer;

-Start codon: AUG;

-Stop codon: UAA;

-Amino acid sequence: Met-Ala-Leu-stop

Explanation;

-A codon is a sequence of three DNA or RNA nucleotides that corresponds with a specific amino acid.

-The start codon marks the site at which translation into protein sequence begins, and the stop codon marks the site at which translation ends. The start codon is often preceded by a 5' untranslated region (5' UTR). AUG is the most common start codon. There are three RNA stop codons: UAG, UAA, and UGA.

3 0
3 years ago
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What is the difference between adhesion, cohesion and surface tension? Which would be used in a xylem? Which would enable an ins
azamat

Cohesion, adhesion and surface tension are different from each other. Adhesion is used in xylem. Surface tension enables an insect to sit on water.

<u>Explanation:</u>

The force of attraction between the molecules of the same type is called cohesion. The force of attraction between the molecules of different type is called adhesion. Tendency of fluid surfaces to shrink to minimum possible area due to the attraction between the liquid molecules is called surface tension.

Adhesion is used in xylem. In xylem water molecules move from the roots to different parts of the plant through the xylem tubes. The adhesive force between the water molecules and xylem walls make the movement of water possible.

Surface tension enables an insect to sit on the surface of a liquid. Due to surface tension the water surface stretches like a membrane due to the higher attractive force between the water molecules.

4 0
3 years ago
During which type of cell division does each daughter cell contain half the amount of dna as did the cell just prior to cell div
Alinara [238K]
<span>meiosis 
This does a good job of explaining it.
https://www.khanacademy.org/test-prep/mcat/cells/cellular-division/a/mitosis-and-meiosis
</span>
8 0
3 years ago
Which of the following statements about the classification of organisms are correct?
lyudmila [28]

The answer should be all of the above, if it is not then the answer is A dichotomous key can help classify an unknown organism.

Hope this helps, if not, comment below please!!!!

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2 years ago
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Why are the geochemical and biogeochemical cycles so important? A.Keeps volcanoes from erupting so often. B.Maintains oil deposi
AleksAgata [21]
C) would be the answer. I just did a test w/ this question and I picked C) and got !00%
4 0
3 years ago
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