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Vladimir [108]
3 years ago
12

How many nucleotides make up one strand of dna in human cells

Biology
1 answer:
JulijaS [17]3 years ago
4 0

Answer:

4 nucleotides.

Explanation:

Basic building block of DNA is known as nucleotides, and they are composed of one phosphate molecule, a sugar, and four bases (guanine, adenine, cytosine, and thymine).

Purine bases is adenine and guanine they contain double ring structure, and pyrimidine bases is cytosine, and thymine they contain single ring structure. The nucleotide bases of DNA line up together, so that the phosphate, and sugar molecule make two long backbones, and each strands of DNA.

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According to the phylogenetic tree, which domains are more genetically related?
quester [9]

Answer: The correct answer is- Archaea and Eukarya.

As per the information about the (phylogenetic tree) given in the question,

the last branch of the phylogenetic tree begins with the line of Eukarya and then holds the species of the Archaea division, which includes those prokaryotic organisms that live in extremely harsh environmental conditions ( such as Methanobacterium, and extreme halophiles).  

As this last branch holds species of two domains ( from 3 domain system of classification that includes Bacteria, Archaea, and Eukarya) , which are Archaea and Eukarya as it begins with Eukarya and later on holds the species of Archaea.

Thus, it shows that Archaea and Eukarya are more genetically related.

3 0
3 years ago
If a rock was determined to be around 3.9 billion years old how much Potassium 40 would be left in that rock sample? (Percentage
jek_recluse [69]

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6 0
3 years ago
How is the carbon cycle an example of law of conversation of energy?
qwelly [4]

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4 0
2 years ago
Define autotrophs, heterotrophs, producers, and photoautotrophs.
sergey [27]
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3 0
3 years ago
Question:
dolphi86 [110]
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So

viruses are not considered as living

5 0
2 years ago
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