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53 Cards in this Set
- Front
- Back
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Each living thing is composed of one or more building blocks called...
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cells.
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Each cell is made up of three basic parts known as the...
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nucleus, cytoplasm, and membrane.
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The reproduction of organisms is based on the reproduction of...
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cells.
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Chromosomes contain genes for...
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trait development.
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Chromosomes, and not the traits themselves, are passed from...
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generation to generation.
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A daughter cell can develop like its parent only if it recieves ... number and type of chromosomes possesed by the parent.
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the same
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If you had two pages of instructions for building a house and wished to give the complete instructions to two other people you would...
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Duplicate each page of instructions and give each person a complete set.
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Each chromosome is like a page of instructions for building a...
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cell.
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Before division each chromosome...
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duplicates itself.
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The total number of chromosomes in a cell before division is...
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double.
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Chromosome duplication is based simply on the interlocking nature of the ... comprising the chromosomes.
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DNA molecules
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The reproduction of all organisms depends upon...
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cellular reproduction.
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Cellular reproduction depends upon...
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chromosome duplication.
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Chromosome duplication depends upon...
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the interlocking nature of DNA molecules.
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Chromosome duplicaton is the first step in the reproduction of...
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cells.
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Chromosome duplication must be followed by proper chromosome...
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distribution.
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Nearly all cells solve the problem of chromosome distribution through a process called...
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mitosis.
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Mitosis distributes chromosomes so that each daughter cell has the same number and kind of chromosomes as the...
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parent cell.
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Division of one nucleus into two like itself involves first...
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chromosome duplication.
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The distribution of chromosomes so each daughter cell gets a complete set is called...
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mitosis.
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The duplicates of each chromosome at first remain attached to each other at a point of constriction called the...
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centromere.
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Sister chromatids are the duplicates of the same...
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chromosomes.
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Sister chromatids are attached to the same...
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centromere.
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A chromosome duplicates itself gene for...
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gene.
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A united pair of sister chromatids can be called a...
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doublet.
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The first stage of mitosis is called...
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prophase.
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Pro
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first
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At the beginning of prophase, the chromatids are very...
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elongated.
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As prophase begins, each chromosome becomes...
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visible.
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As prophase begins, each chromosome becomes visible as two... join to form one...
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sister chromatids/doublet.
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Late in the first phase of mitosis the nucleus begins to...
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break into fragments.
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Forming later in prophase are discrete, fine fibers of protein called...
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spindle fibers.
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The appearance of dublets, breakdown of the nuclear membrane, and formation of spindle fibers all occur during...
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prophase.
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During prophase, specialised structures called... form on the face of each centromere.
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kinetochores
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The kinetochores become attached to special microtubules called...
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kinetochore microtubules.
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The formation of kinetochores and their attchmet to microtubules occurs during a substage of prophase called...
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prometaphase.
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Metaphse begins when the nuclear envelope has completely...
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disappeared.
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Metaphase begins when the centromeres have moved into position on the ... of the cell.
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equator
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Metaphase plate
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eaquator of the cell
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The second stage of mitosis is called...
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metaphase.
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Meta
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following
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During metaphase the sister chromatids are highly...
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condensed.
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Each centromere lined up along the equator of the cell during metaphase is attached by a spindle fiber to ... pole(s) of the dividing cell.
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both
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The third stage of mitosis is...
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Anaphase
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Anaphase begins when the joined centromeres of sister chromotids...
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separate.
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During anaphase, ends of chromosomes trail behind the...
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centromere
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Ana
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moving directionally
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Daugter chromosomes are formerly...
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sister chromatids.
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The fourth stage of mitosis is called...
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Telophase.
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Telo
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end
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The formation of new nuclear membrane marks the end of...
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telophase.
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Single chromosomes seprated at ... ends of the cell marks the end of telophase
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opposite.
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During telophase, spindle fibers will...
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dissapear.
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