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CHAPTER 11-4 VOCAB. Type of cell division used by organisms to grow bigger, repair injuries, and replace worn out cells. mitosis. 2 matching chromosomes that are the same size, same shape, and carry genes for the same traits. HOMOLOGOUS. Cells that have 2 copies of each chromosome.
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Type of cell division used by organisms to grow bigger, repair injuries, and replace worn out cells. mitosis 2 matching chromosomes that are the same size, same shape, and carry genes for the same traits. HOMOLOGOUS
Cells that have 2 copies of eachchromosome Diploid or 2n Type of division seen in bacteria Binary fission
Type of nuclear division that produces 2 daughter cells that are genetically identical to the parent cell mitosis Type of nuclear division that producesfour daughter cells that have ½ the number of chromosomes as the parent cell meiosis
Cells that have only one copy ofeach chromosome Haploid OR 1n Repeating sequence of events that cells go through during their lifetime Cell cycle
S or SYNTHESIS Phase in which the DNA is copied DNA that is scrunched up into bundles in a dividing cell chromosomes
oogenesis The production of mature eggs The type of reproduction that involves the union of gametes and combinesgenetic material from 2 parents Sexual reproduction
2 identical arms that make up a chromosome chromatids DNA that is spread out in the nucleusof a non-dividing cell chromatin
gametes Reproductive cells like sperm or eggs Pairing up of homologous chromosomes during Prophase I of meiosis synapsis
The exchange of genetic material between homologous chromosomes Crossing over The pair of homologous chromosomes that forms during synapsis tetrad
Genetic recombination New mixtures of genetic material The random separation of maternaland paternal chromosomes duringAnaphase I. Independent assortment
spermatogenesis The production of mature sperm Type of reproduction that does not involve meiosis or joining of gametes and genetic material comes from only 1 parent Asexual reproduction
Small cells produced during oogenesis when the cytoplasm divides unevenly which degenerate Polar bodies Type of cell division used to producegametes meiosis
spermatogenesis The production of mature sperm The type of reproduction that uses thegenetic material from only 1 parent Asexual reproduction
Programmed cell death; “Cell suicide” for the good of the organism apoptosis Small cells with little cytoplasm produced during oogenesis Polar bodies