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ludmilkaskok [199]
3 years ago
5

A DNA molecule is shaped like a

Biology
2 answers:
Elden [556K]3 years ago
7 0
People say it's either a twisting ladder or a double helix (not triple) so I's go with B.
nirvana33 [79]3 years ago
7 0

Answer:

he right

Explanation:

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Which type of Electromagnetic waves on the spectrum has the highest<br> energy? Why?
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Explanation:

Each section of the electromagnetic (EM) spectrum has characteristic energy levels, wavelengths, and frequencies associated with its photons. Gamma rays have the highest energies, the shortest wavelengths, and the highest frequencies. Radio waves, on the other hand, have the lowest energies, longest wavelengths, and lowest frequencies of any type of EM radiation. In order from highest to lowest energy, the sections of the EM spectrum are named: gamma rays, X-rays, ultraviolet radiation, visible light, infrared radiation, and radio waves. Microwaves (like the ones used in microwave ovens) are a subsection of the radio wave segment of the EM spectrum.

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3 years ago
In an analysis of the nucleotide composition of DNA, which of the following proportions will be found?
katrin [286]

Answer:

With respect to the composition of DNA, in an analysis it can be found that the proportions of nucleotides are A + C = G + T (option a).

Explanation:

The proportion of nucleotides in a DNA molecule can be established according to the sequence of these nucleotides on both complementary strands, since the purinic bases of one strand are complemented by the pyrimidinic bases of another:

  • <em>Adenine is complemented with Thymine A=T</em>
  • <em>Guanine is complemented with Cytosine G=C</em>

From this we can deduce that in a DNA molecule with two chains there will be the same amount of adenine and thymine, as well as the same number of guanine with respect to cytosine, so:

<em>     A + C = G + T</em>

An example of this would be a known DNA molecule (hypothetical), with 5 molecules of Adenine and 7 molecules of Guanine. In this case there are 5 Thymines, complementary with Adenine, and 7 Cytosines like Guanine:

<em>     A + C = G + T</em>

<em>     5 + 7 = 7 + 5</em>

6 0
3 years ago
Which sentence best explains how green plants receive energy from sunlight
Daniel [21]

i dont know where the choices are but plant gain energy from sunlight and they use it to make food through photosynthesis.


Hope it helps bro :D

5 0
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The definition of an autotroph is an organism that is able to form nutritional organic substances from simple inorganic substances such as carbon dioxide.

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How may daughter cells are formed
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2 or 4 depending on the process

Explanation:

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