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40 Cards in this Set
- Front
- Back
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Interphase
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Segment of cell cycle where cell is not dividing
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haploid
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containing half genetic information
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cleavage furrow
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Area of cell membrane that pinches in
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nonhistone
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Protein involved in movement of DNA
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g0 Phase
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Phase of cell cycle seen in adult central nervous cells
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Polar fibers
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Extend across cell from centrosome to centrosome
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Histone
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Allows tight packaging of DNA
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Karyotype
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Used to examine a person's chromosomes
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gamete
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Human reproductive cell
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Genetics
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Study of heredity
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S Phase
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Phase marked by DNA Replication
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G 1 phase
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growth phase of cell
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Cell plate
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Formed in plant cells during division at point of division
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Oogenesis
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Creation of eggs by females
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diploid
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Containing both sets of genetic information
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cell cycle
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Description of cell's life
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Biology
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Study of life
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Double helix
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shape of DNA molecule
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sex chromosome
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determines sex of offspring
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G 2 Phase
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Phase marked by ending of DNA replication
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Autosomes
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Chromosomes that does not determine sex
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Synapsis
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Marked by homologous chromosomes lined up side by side
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mitosis
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Simple Cell division; the division of the nucleus which occurs during cell division
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Prophase
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Phase of mitosis where cell prepares to divide by moving chromosomes to middle
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spermatogenisis
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Creation of sperm by males
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telophase
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Phase marked by cells splitting in two
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spindle fibers
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source of genetic variation by exchanging info. between side by side chromosomes
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binary fission
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Bacteria division; division of prokaryotic cells into two identical haploid cells
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metaphase
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Phase of mitosis where chromosomes are aligned
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centromere
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Area between chromosomes holding them together
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cytokenisis
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Division of the cytoplasm; during telophase
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anaphase
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Phase of mitosis where chromosomes begin to seperate
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Tetrad
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Name given to chrosomes lined up side by side during meiosis
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Centriole
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animals cells each centrosomes contain a pair of small, cylinder-like bodies;
plant cells lack these |
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centrosomes
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appear as two pairs of dark spots next to the disappearing nucleus.
In plants and animals_______move towards opposite ends of the cell |
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Kinetochore
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found in the centromere section of each chromatid
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asexual reproduction
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production of offspring from one parent.
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Independent assortment
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the random separation of the homologous chromosomes.
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crossing over
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Process by which portions of chromatids may break off and attach to adjacent chromatids on the homologous chromosomes.
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polar bodies
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one of two small cells produced and discarded during each of the two meiotic devisions that yield the haploid egg.
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