Finishing your poster... Can you be creative? Human chromosomes.
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Transcript of Finishing your poster... Can you be creative? Human chromosomes.
![Page 1: Finishing your poster... Can you be creative? Human chromosomes.](https://reader035.fdocuments.in/reader035/viewer/2022062401/5a4d1b497f8b9ab0599a4a27/html5/thumbnails/1.jpg)
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Finishing your poster...Finishing your poster...
Can you be creative?Can you be creative?
![Page 3: Finishing your poster... Can you be creative? Human chromosomes.](https://reader035.fdocuments.in/reader035/viewer/2022062401/5a4d1b497f8b9ab0599a4a27/html5/thumbnails/3.jpg)
Human chromosomes
![Page 4: Finishing your poster... Can you be creative? Human chromosomes.](https://reader035.fdocuments.in/reader035/viewer/2022062401/5a4d1b497f8b9ab0599a4a27/html5/thumbnails/4.jpg)
How many chromosomes?
How many chromosomes are there in human sex cells?
How many chromosomes are there in each new human body cell produced by mitosis?
46 chromosomes(23 matching pairs)
23 unpaired chromosomes
23 unpaired chromosomes
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How many chromosomes?
Human sex cells have a set of 23 unpaired chromosomes – that’s half the usual number.
Sex cells in animals and plants follow the same rules.
They have half the usual number of chromosomes.
They have a complete set of single chromosomes.
Why is this important for fertilization and reproduction?
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There are two types of sex chromosome with names that are very easy to remember!
X and Y chromosomes
Females have two X chromosomes, one from each parent.
X chromosome Y chromosome
XY
XXMales have one X chromosome and one Y chromosome.
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Fertilization animation
FLASH 6 – FertilisationFLASH 2 – Mitosis drag & drop
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Chromosomes and fertilization
![Page 9: Finishing your poster... Can you be creative? Human chromosomes.](https://reader035.fdocuments.in/reader035/viewer/2022062401/5a4d1b497f8b9ab0599a4a27/html5/thumbnails/9.jpg)
ReproductionReproduction
Sexual Asexual
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CELL
NUCLEOUS
CHROMOSOME
DNA
GENE
HOMEWORK...HOMEWORK...