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