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Describe the process of DNA synthesis in a bacterial cell, naming the important

ID: 85551 • Letter: D

Question


Describe the process of DNA synthesis in a bacterial cell, naming the important enzymes and stating what each doe Consider two scenarios in which an ancestral population occupies a large, ecologically homogenous area, In each scenario, the ancestral population becomes divided into two isolated populations. In the first case, the ancestral population becomes divided into two equal portions by a barrier that movement between them. In the second case, a freak storm allows a small number of individuals colonize an islands that is distant from the ancestral population The habitat on the island is slightly different from that used by the ancestral population Again, you can assume that further movements between the mainland and the island are not possible. Compare and contrast the evolutionary consequences of the two scenarios.

Explanation / Answer

ANSWER:

1) DNA synthesis is the natural or artificial creation of deoxyribonucleic acid molecules. The term DNA synthesis can refer to any of the following in various contexts:

1)DNA replication - DNA biosynthesis.

2)Polymerase chain reaction - enzymatic DNA synthesis.

3)Gene synthesis - physically creating artificial gene sequences.

DNA synthesis occurs just prior to cell division through a process called replication. When replication begins the two strands of DNA are separated by a variety of enzymes. Thus opened, each strand serves as a template for producing new strands. This whole process is catalyzed by an enzyme called DNA polymerase.

This method is much faster than previous known methods producing billions of copies of a DNA strand in just a few hours. It begins by putting a small section of double stranded DNA in a solution containing DNA polymerase, nucleotides and primers. The solution is heated to separate the DNA strands. When it is cooled, the polymerase creates a copy of each strand. The process is repeated every five minutes until the desired amount of DNA is produced.


2) First population will probably be fine, but the one on the island is more likely to have abnormal traits or recessive disorders due to genetic drift . the island population is thus more likely to evolve into a species different from that of the ancestral population.first population spliced into two so I think they would experience new speciation processes as well

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