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Cycle

Cycle

a round or succession of observable phenomena, recurring usually at regular intervals and in the same sequence.

Origin: gr. Kyklos = circle The unit of frequency; one hertz has a periodic interval of one second.


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Data analysis: DNA alignment HELP?

... working in plant systems designed experiments to determine whether plants also possessed CDKs that functioned as the catalysts for cell cycle progression. To isolate a cDNA encoding a CDK in maize, investigators aligned the predicted amino acid sequences of human cdc2, S. pombe cdc2, ...

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by TToe
Mon Feb 18, 2013 10:40 am
 
Forum: Genetics
Topic: Data analysis: DNA alignment HELP?
Replies: 1
Views: 119

Re: Re:

... do not actively divide in adult humans at all, these include e.g. neurons and muscle cells. Both irradiation and chemotherapy disrupt the cell cycle and thus mainly affect fast growing cells who are constantly dividing. Irradiation does this mostly by introducing so many errors to the cell's ...

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by Ahsmeah
Tue Feb 05, 2013 10:10 pm
 
Forum: Physiology
Topic: Cancer = Mutation: Stopping Mutation Would Cure Cancer?
Replies: 6
Views: 1025

Re: Re:

... do not actively divide in adult humans at all, these include e.g. neurons and muscle cells. Both irradiation and chemotherapy disrupt the cell cycle and thus mainly affect fast growing cells who are constantly dividing. Irradiation does this mostly by introducing so many errors to the cell's ...

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by biohazard
Tue Feb 05, 2013 1:23 pm
 
Forum: Physiology
Topic: Cancer = Mutation: Stopping Mutation Would Cure Cancer?
Replies: 6
Views: 1025

Human Pathology 'Multiple-Choice Questions'

... meiotic progress of a primary oocyte to a secondary oocyte? a. The estradiol surge during the second half of the follicular phase b. The midcycle surge of LH c. Fertilization d. The progesterone surge during the luteal phase 9. Granulosa cells are aspirated from a dominant follicle of a ...

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by ScrimmSphere
Mon Feb 04, 2013 11:03 am
 
Forum: Human Biology
Topic: Human Pathology 'Multiple-Choice Questions'
Replies: 0
Views: 291

Genetics with Mitosis and Meiosis

... wrong. Anaphase (in any type of division) is after the genetic material has separated and is being pulled toward the ends of the cell. The cell cycle: G-1 S-phase G-2 M-phase (division) Mitosis: Before S-phase, each chromosome consists of one strand of DNA. The DNA is copied during S-phase. ...

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by wildfunguy
Sun Feb 03, 2013 11:45 pm
 
Forum: Genetics
Topic: Genetics with Mitosis and Meiosis
Replies: 2
Views: 1002
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