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77julia77 [94]
2 years ago
8

What is the main function of digestion?

Biology
2 answers:
chubhunter [2.5K]2 years ago
7 0
Your "Digestive System" breaks down food into molecules that are then absorbed into your body.
mixas84 [53]2 years ago
6 0
The main function of the digestive system is to convert food to energy and eliminate waste. The human digestive system is made up of several parts like the mouth, esophagus, stomach, small and large intestines, pancreas, liver, gallbladder, rectum and anus.
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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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Answer:

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:

  • <em>Adenine 30%. </em>
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  • <em>Total ..... 100% </em>

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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