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Radda [10]
3 years ago
8

Chargaff's rules of base pairing are explained by which structural feature of DNA? A. Each strand of DNA contains a phosphate an

d sugar backbone. B. The nucleotides of DNA may appear in a wide variety of sequences. C. DNA is double stranded, and covalent bonds between identical nucleotides hold the strands together. D. DNA is double stranded, and hydrogen bonds between base pairs hold the strands together.
Biology
2 answers:
laila [671]3 years ago
8 0

Answer:

C

Explanation:

just took the quiz

solong [7]3 years ago
5 0

Answer:

Option C. is correct.

Explanation:

According to Chargaff's rules, DNA (Deoxyribonucleic Acid) from any species of an organism should have purine and pyrimidine bases in the ratio 1:1

This ratio is very important for solving the structure of DNA.

As per this rule, DNA is double-stranded, and covalent bonds between identical nucleotides hold the strands together.

So, Option C. is correct.

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Based on morphological and molecular data, researchers hypothesize that the split between dugongs and proboscideans likely occur
sineoko [7]

Answer:

Both molecular and morphological comparisons among dugongs and proboscideans species should be conducted

Explanation:

From a molecular biology point of view, it is possible to compare the sequences of dugongs and proboscideans and thus observe the homology level between genes of interest, it in order to establish evolutionary relationships among species. Moroever, by mass spectrometry (MS), it is possible to compare proteins in fossils >1 million years, these comparisons may shed light on the evolutionary origin of one group

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4 years ago
Which of the following best describes the shape of a DNA molecule?
melomori [17]

Answer:

Helix

Explanation:

Happy to help

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7 0
3 years ago
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DNA polymerase and RNA polymerase are enzymes. They belong to the macromolecule category
Sphinxa [80]

Answer:

Catalysts

Explanation:

Both catalyze the reactions

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3. Explain why food webs with many species (biodiverse) are more resilient (stronger) than those with few
mestny [16]

since there are more species they have more options on which ones to eat bebe:)

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3 years ago
The direction that an ocean current travels can be altered by the movement of the Earth's rotation on its axis. This is known as
Nitella [24]

The direction that an ocean current travels can be altered by the movement of the Earth's rotation on its axis. This is known as the Coriolis effect.

<h3>What is Coriolis effect in simple terms?</h3>

Coriolis effect is the result of Earth's rotation on weather patterns and ocean currents. The Coriolis effect makes storms swirl in the clockwise direction in the Southern hemisphere while on the other hand, storms counterclockwise in the Northern Hemisphere. This effect can cause change in the direction of the ocean current due to the rotation on its axis.

So we can conclude that the direction that an ocean current travels can be altered by the movement of the Earth's rotation on its axis. This is known as the Coriolis effect.

Learn more about ocean current here: brainly.com/question/1145641

#SPJ1

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