Sexual Reproduction
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Transcript of Sexual Reproduction
![Page 1: Sexual Reproduction](https://reader036.fdocuments.in/reader036/viewer/2022081422/55840fdfd8b42a11168b4eae/html5/thumbnails/1.jpg)
Sexual Reproduction
By- Justin Ehrenpreis
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Production of sex cells is……
Gametes
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Sex cell fuse by…………
Fertilization
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Produces an egg cell…….
Zygote
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What involves 2 parents?
Sexual Reproduction
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Both parents contribute…………
A Gamete
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Gametes contain……………….
Genetic information giving by……
Offspring obtained……
equally
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Gametes are formed in……..
Reproductive structures called….gonads
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Gametes are…………….
Sex cells
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Males cells called…………..
Sperm
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Females cells called…………..
Ovum or…….
egg
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Gametogenesis is
A process that gametes are produced by…..
Meiosis
That happens in the……….
Gonades
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Meiosis is……………..
Reduction division that create gametes
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Fertilization is………..
Fusion of one sperm nuclei with one ova (egg) nuclei, producing a…………………
Zygote
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Haploid or Monoplaoid represents…………….
A gamete which has
half of the # of chromosomes necessary.
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Once 2 gametes fuse together they………
Form a zygote that is a……
Diploid
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Diploid has…………..
2 joined chromosomes which is……….
A set
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Meiosis occurs in………
Diploid cells
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Meiosis chromosomes duplicate………
Once through 2 successive divisions, 4 haploid cells, with
half the chromosome # of …….
Parental cell
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Meiosis occurs only in…..
Sexual reproducing organisms
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Depending on organism it may produce……………….
Haploid gametes, that………………
Do not…….
Divide further but……
Fuse to produce a…….
Diploid zygote
May produce…..
Haploid spores.
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Haploid spores …….
Divide by…..
Mitotic cell cycles and produce……
Unicellular or multi cellular organisms.
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Animas products of meiosis is the………………………
Gametes.
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Meiosis consist of……………
2 nuclear divisions
Meiosis1 and 2
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Crossing-over is……….
A process that can give rise to genetic recombination.
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Nucleolus disappears during…………….
Prophase 1
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The key difference between mitosis and meiosis is……..
That sister chromatids remain joined after Metaphase in Meiosis 1, whereas in mitosis they separate.
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Centrioles are in…………
Opposite poles.
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Cytokinessis is
Separation.
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Meiosis has…….
4 cells
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Mitosis has………
2 cells
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Chromosome do not……….
• Replicate again in Meiosis 2 Prophase 2
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Meiosis 2 Telophase 2
The making of 4 daughter cells