Flashcards - TExMaT Master Science Teacher 8-12: Cell Reproduction & Division

Flashcards - TExMaT Master Science Teacher 8-12: Cell Reproduction & Division
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centromere
The centromere is the part of a chromosome that links sister chromatids or a dyad
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nucleosome
A nucleosome is a basic unit of DNA packaging in eukaryotes, consisting of a segment of DNA wound in sequence around eight histone protein cores
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interphase
Interphase is the phase of the cell cycle in which a typical cell spends most of its life
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centrosome
In cell biology, the centrosome is an organelle that serves as the main microtubule organizing center of the animal cell as well as a regulator of cell-cycle progression
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telomere
A telomere is a region of repetitive nucleotide sequences at each end of a chromosome, which protects the end of the chromosome from deterioration or from fusion with neighboring chromosomes
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chromosome
A chromosome is a packaged and organized structure containing most of the DNA of a living organism
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chromatin
Chromatin is a complex of macromolecules found in cells, consisting of DNA, protein, and RNA
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chromatin
Chromatin is a complex of macromolecules found in cells, consisting of DNA, protein, and RNA
chromosome
A chromosome is a packaged and organized structure containing most of the DNA of a living organism
telomere
A telomere is a region of repetitive nucleotide sequences at each end of a chromosome, which protects the end of the chromosome from deterioration or from fusion with neighboring chromosomes
centrosome
In cell biology, the centrosome is an organelle that serves as the main microtubule organizing center of the animal cell as well as a regulator of cell-cycle progression
interphase
Interphase is the phase of the cell cycle in which a typical cell spends most of its life
nucleosome
A nucleosome is a basic unit of DNA packaging in eukaryotes, consisting of a segment of DNA wound in sequence around eight histone protein cores
centromere
The centromere is the part of a chromosome that links sister chromatids or a dyad
chromatids
A chromatid is one copy of a newly copied chromosome which is still joined to the other copy by a single centromere
homologs
In the context of biology, homology is the existence of shared ancestry between a pair of structures, or genes, in different taxa
sister chromatid
A sister chromatid refers to either of the two identical copies formed by the replication of a single chromosome, with both copies joined together by a common centromere
microtubule
Microtubules are a component of the cytoskeleton, found throughout the cytoplasm
mitotic spindle
In cell biology, the spindle apparatus refers to the cytoskeletal structure of eukaryotic cells that forms during cell division to separate sister chromatids between daughter cells
crossing over
Chromosomal crossover is the exchange of genetic material between homologous chromosomes that results in recombinant chromosomes during sexual reproduction
homologous recombination
Homologous recombination is a type of genetic recombination in which nucleotide sequences are exchanged between two similar or identical molecules of DNA

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