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Biology
IB

Explain the process of DNA Replication

DNA replication is semi-conservative; new DNA molecule is composed of 1 old strand of DNA and 1 new strand .Many enzymes are involved in this process. The action of these can be combined into a 7 step pro...

Answered by Barbora H. Biology tutor
1303 Views

Compare how pyruvate is used in human cells when oxygen is available and when oxygen is not available.

When oxygen is available- aerobic respiration takes place, when oxygen is not available- anaerobic respiration takes place. Pyruvate reacrs differently differently in these two situations.During Aerobic r...

Answered by Nick P. Biology tutor
6462 Views

What are the differences between prokaryotic and eukaryotic DNA?

DNA in prokaryotes can be found in the cytoplasm in a form of a free circular chromosome. Additionally, there are structures called plasmids that contain DNA as well and their functions are connected to e...

Answered by Aleksandra S. Biology tutor
6443 Views

Explain the Polymerase Chain Reaction (PCR) as a technique to make copies of DNA.

PCR takes place in three stages - denaturation, annealing, and extension. The process begins with a very small quantity of DNA being loaded into a PCR machine. The hydrogen bonds that exist between the tw...

Answered by Aashna B. Biology tutor
2936 Views

At what stage of Meiosis are the centrioles of paired chromosomes at opposite poles of the cell ?

During Meiosis I: Metaphase I

Answered by Biology tutor
1436 Views

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