diploid vs haploid
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DIPLOID VS. HAPLOID. DIPLOID. HAPLOID. Diploid = 2(n) In humans: n=23 chromosomes 2(n)= 46 total chromosomes 2 sets of each chromosomes Somatic cells are diploid Body Cells (nerve, muscle, bone, etc.). Haploid = n In humans: n= 23 chromosomes Only 23 chromosomes total

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diploid vs haploid
DIPLOID VS. HAPLOID

DIPLOID

HAPLOID

  • Diploid = 2(n)
  • In humans:
    • n=23 chromosomes
    • 2(n)= 46 total chromosomes
  • 2 sets of each chromosomes
  • Somatic cells are diploid
    • Body Cells (nerve, muscle, bone, etc.)
  • Haploid = n
  • In humans:
    • n= 23 chromosomes
    • Only 23 chromosomes total
  • 1 set of each chromosome
  • Gametes are haploid
    • Sex Cells (Sperm & Egg)
cell division

Cell Division

Mitosis vs. Meiosis

mitosis
Mitosis

Purpose:

  • For growth and repair
  • Type of Asexual reproduction for some unicellular organisms
mitosis1
Mitosis

Takes place in somatic cells (body cells).

mitosis2
Mitosis

Starts diploid (2n) and ends diploid (2n).

One cell division

mitosis3
Mitosis

One parent makes 2 daughter cells that are identical to the parent

No genetic variation

slide7
Phases of Mitosis

Prophase

Metaphase

Anaphase

Telophase

meiosis
Meiosis

Purpose:

  • Creation of gametes (reproductive/ sex cells)
meiosis1
Meiosis

Takes place in gametes (sexcells).

meiosis2
Meiosis

Starts diploid (2n) and ends haploid(n).

2cell divisions

meiosis3
Meiosis
  • One parent makes 4 daughter cells that are genetically different to the parent
  • Creates genetic variation
    • Crossing over of chromosomes is what allows for genetic variation
slide12
Phases of Meiosis

Prophase I & II

Metaphase I & II

Anaphase I & II

Telophase I & II

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