The cell Science notes

The cell Science  notes

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  • Today we will be learning about The Cell and Inheritance.According to the chromosome theory of inheritance,genes are carried from parent to their offspring on chromosomes.
  • Now we should know that each cell normally contains 23 pairs of chromosomes, for a total of 46.Chromosomes are made up of many genes joined toghther like beads on a string 
  • Hair color
  • Skin tone
  • Say that the necklaces represent genes 
  • Eye color
  • Type of hair( wavy,curly,ect)
  • Good question! Chromosomes controlle genes.You ave about 20,000 to 25,0000 in your body.
  • What do Chromosomes do? 
  •  Meiosis ( Not to be confused with Mitosis) is the process that the number of chromosomes is reduced by 1/2 to form sex cells.
  • During Meiosis, the chromosome pairs separate and are distributed to 2 different cells.The resulting cells have only 1/2 of the chromosomes 
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