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Delvig [45]
3 years ago
9

Why does the DNA double helix have a uniform diameter? a. Deoxyribose sugars bind with ribose sugars. b. Nucleotides bind with n

ucleoside triphosphates. c. C nucleotides pair with A nucleotides. d. Nucleotides bind with nucleosides. e. Purines pair with pyrimidines.
Biology
1 answer:
Lostsunrise [7]3 years ago
4 0

Answer:

e. Purines pair with pyrimidines

Explanation:

Diameter of DNA double helix is uniform through out the structure and it is 2 nm. This uniformity is due to the base pairing between a purine and a pyramidine. Purine base is made of two rings and pyramidine base has a single ring. All the bases are either derived from purine or from pyramidine structure and a purine always pairs with pyramidine. Two purines or two pyramidines can not pair with each other. So at any point along the DNA molecule, the sugar phosphate backbones always have three ring structure between them, hence the uniform diameter.

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a_sh-v [17]

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3 years ago
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Goshia [24]

Assuming the body weight of the woman is 67 kg, milligrams of digoxin required per day for the woman will be 3.25 milligrams.

<h3>What is drug dosage?</h3>

Drug dosage refers to the amount of drug required to be administered to a patient per given time based on body weight or age.

The dosage for digoxin for treatment of heart failure for the 67 year old woman is 48.5 mcg/kg body weight.

Assuming the body weight of the woman is 67 kg, milligrams of digoxin required per day for the woman will be 48.5 * 67/1000 = 3.25 milligrams.

In conclusion, the dosage of drugs depends on age and body weight.

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8 0
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sergiy2304 [10]

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