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34kurt
3 years ago
10

Andy is studying the effect of sunlight on the growth of plants. He selected three identical plants with a height of 15 cm for t

he experiment. Andy created a data table for his observations. The first plant was kept away from sunlight, the second plant received 3 hours of sunlight, and the third plant received 5 hours of sunlight. All other growing conditions of the plants were kept constant.
Which step of the scientific method will most likely come next?


Analyze the data

Construct a hypothesis

Test with an experiment

Do background research
Biology
1 answer:
Anton [14]3 years ago
7 0

Answer:

he should construct a hypothesis

Explanation:

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<h3>What is concentration gradient?</h3>

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If a molecule of DNA has 30% Adenine how much of the other bases will be present?
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If a DNA molecule has 30% Adenine the percentage of the other bases is Thymine: 30% Cytosine: 20% Guanine: 20%.

Explanation:

When the percentage that a base has in a DNA molecule is given, the percentage of the other bases can be known using the Chargaff's base pair rule.

A DNA molecule has the information of the genome of a living being, according to a specific sequence of its nitrogenous bases adenine, guanine, cytosine and thymine.

Chargaff was able to establish that in a DNA molecule the ratio of purine : pyrimidine of 1:1, so there must be the same amount of thymine as adenine and a similar amount of guanine for the cytosine, taking into account the complementarity of bases.

Taking into account the law of the base pair, if in a DNA chain there is 30% of Adenine, in the molecule there is:

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In this case, the <u>Chargaff rule is useful to determine the percentage of nitrogenous bases that exist in a DNA molecule, knowing the percentage of a single base</u>.

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