Answer:
d. DNA polymerase begins adding nucleotides at the 5' end of the template
Explanation:
Polymerase DNA always works in one direction, synthesizing the new 5' to 3' oriented chains and adding nucleotides to the 3' end of a new synthesis chain by forming phosphodiester bonds between the phosphate of a nucleotide and the sugar of the anterior nucleotide.
Because DNA polymerase only acts in a 5' to 3' direction, replication along a chain, the leading chain, occurs continuously. The synthesis of the opposite chain, the delayed chain, occurs discontinuously because the DNA polymerase must wait for the replication fork to open. Over the delayed chain, short segments of DNA called Okazaki fragments (named after Reiji and Tsuneko Okazaki, the scientists who discovered these fragments) are synthesized as polymerase DNA works out of the replication fork. Ligase DNA catalyzes the covalent bonds between Okazaki fragments in the delayed chain to ensure there are no gaps in the phosphodiester skeleton. Finally, the first ones are removed and these gaps are filled by the DNA polymerase.
Chloroplasts. They are only in green plant cells, so, unless you are a green plant, humans and flatworms would not contain them.
Answer:
Microscopic observations have shown that the cell is the smallest functional unit of life. We now know the various organelle (or organs) of an individual cell and how they work. For example, a bacteria is a single-cell organism and is capable of carrying out all its life process (growth, division, metabolism, etc.)
Explanation:
<h3><em>The contents of the cell, or the structures of the cell, allow the cell to be "specialized." Together with the cell's proteins, they allow the cell to do specific things. They allow a cell to act like a neuron or a bone cell or a skin cell.</em></h3>
It must pass from the nucleus to the ribosomes, hope this helped!
Answer:
Explanation:
Look I would help but I'm not learning that stuff yet in Middle School.
