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trapecia [35]
2 years ago
10

Give a example of a contact force And an example of a force that acts at a distance

Biology
1 answer:
Aloiza [94]2 years ago
6 0
An example of force that acts at distance is gravity and an example of contact force is pushing a chair across the room
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Which of the following is needed for natural selection to occur?
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Complete hydrolysis of a nonapeptide gave 3 ala, 2 phe, 2 asp, gly, and ser. Reaction of the nonapeptide with Sanger's reagent (
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Answer:

Alanine is obtained as the first amino acid, taking into account that the reaction with the Sanger reagent hydrolyzes N- (2,4-dinitrophenyl) alanine. thus with the fragments of the partial hydrolysis they are organized to create a polypetidic chain

ala-asp-gly-ala

gly-ala-phe

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