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Ahat [919]
3 years ago
9

The oxygen atom of H2O has a positive or A negative charge

Biology
1 answer:
slamgirl [31]3 years ago
6 0
The oxygen atom of H2O has a negative charge.
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Cells need oxygen to make energy. Oxygen-rich blood is transported to tissues. When the oxygen is dropped off, it needs to move
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   I believe it's the C. capillaries because theirs no possible way for arteries to travel in Arteries are connected to the heart to let gallons of oxygenated and not oxygenated blood to travel up and down through your body. 


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3 years ago
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To test a hypothesis, a scientist could...
ehidna [41]

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see below

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8 0
3 years ago
RNA primers in Okazaki fragments are usually very short, less than 10 nucleotides and sometimes as short at 2 nucleotides in len
bagirrra123 [75]

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During DNA replication each parental DNA strand serves as a template to a new complementary strand. DNA polymerase is the main enzyme responsible for this process, it catalyzes the addition of nucleotides to form the new DNA chain.  

The complementary nature of the DNA strands, presents a difficulty for DNA replication: DNA polymerase catalyzes the polymerization of DNA only in the 5’ to3’ -in the leading DNA strand. Thus, the opposite DNA strand, the lagging strand, faced an obstacle that is solved by the Okazaki small fragments. The primase enzyme synthesizes small RNA fragments complementary to the lagging DNA strand. These RNA fragments serve as primers for the DNA polymerase. To remove this RNA primers and form a continuous complementary lagging strand, RNase H and DNAse ligase will further cut and join the DNA again.  

DNA polymerase has a higher processivity than primase, if processivity is the average number of nucleotides that it is capable to continuously add to the template strand. Primase dissociates from the template often during DNA replication as it has to constantly add new RNA primers to the strand.  

3 0
3 years ago
1. Which structure is found in all animal cells?
gayaneshka [121]
<h2>Question:-</h2><h3> Which structure is found in all animal cells?</h3>

<h2>Answer :- Centrioles </h2>

<h2>Explanation:- </h2>

  1. They are barrel shaped cell organelles only found in animal cell
  2. There function is to help in division of cell membrane by forming microtubules which help in division of chromosomes ( spindle fibres)
  3. They play role in arranging microtubules which act as endoskeleton of the cell
  4. They also help in formation of cell structure like cilia and filaments
6 0
2 years ago
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