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Mitosis and Meiosis vocabulary


the stage of meiosis or mitosis when chromosomes move toward opposite ends of the nuclear spindle


microtubules and fibers that radiate out from the centrioles

Asexual reproduction

reproduction without the fusion of gametes


early stage of an embryo produced by cleavage of an ovum


a specialized condensed region of each chromosome that appears during mitosis where the chromatids are held together to form an X shape


one of two small cylindrical cell organelles composes of 9 triplet microtubules


one of two identical strands into which a chromosome splits during mitosis


the readily stainable substance of a cell nucleus consisting of DNA and RNA and various proteins


a threadlike body in the cell nucleus that carries the genes in a linear order

Crossing over

the interchange of sections between pairing homologous chromosomes during the prophase of meiosis


organic process consisting of the division of the cytoplasm of a cell following karyokinesis bringing about the separation into two daughter cells


having two of each chromosome

DNA Replication

The process of doubling the DNA that occurs before mitosis

Germ Cells

the only cells that can undergo meiosis


the actual number of different types of chromosomes a cell processes

Homologous Pairs

in diploid cells, a pair of identical chromosomes is called an homologous


the phase of a cell's life cycle between the reproductive stages of mitosis


(genetics) cell division that produces reproductive cells in sexually reproducing organisms


the second stage of mitosis


mitosis, cell shape, in cilia and flagella


cell division in which the nucleus divides into nuclei containing the same number of chromosomes


development of ova


another word for eggs


one egg


having more than a diploid number of chromosomes


the first stage of mitosis when chromosomes form from chromatin and the nuclear membrane is absorbed into the cell

Reduction Division

(genetics) cell division that produces reproductive cells in sexually reproducing organisms

Sexual Reproduction

reproduction involving the union or fusion of a male and a female gamete

Somatic Cells

body cells


development of spermatozoa

Spindle fibers

help pull apart the cell during replication and are made up of micrtubules


the side by side pairing of homologous maternal and paternal chromosomes at the start of meiosis


the final stage of mitosis

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