U4L1–3: Mitosis, Meiosis, and Reproduction
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Asexual Reproduction; HOW MANY PARENTS? OFFSPRING ARE … 1: Mitosis & Asexual Reproduction
Requires one parent; offspring are genetically identical.
DEFINE: Mitosis 1: Mitosis & Asexual Reproduction
The cell division process used for asexual reproduction.
MITOSIS/MEIOSIS + USE: Single-Celled Organisms 1: Mitosis & Asexual Reproduction
Use mitosis to reproduce entire organisms.
MEIOSIS/MITOSIS + USE: Multicellular Organisms 1: Mitosis & Asexual Reproduction
Use mitosis for growth and tissue repair.
MITOSIS: Outcome 1: Mitosis & Asexual Reproduction
Produces two identical diploid daughter cells (full set of chromosomes).
FUNCTION: Cell Health 1: Mitosis & Asexual Reproduction
Mitosis maintains health by replacing dead or damaged cells.
Sexual Reproduction HOW MANY PARENTS? WHAT DOES IT DO? 2: Meiosis & Sexual Reproduction
Requires two parents; increases genetic variation for better species survival.
DIFFERENCES: Sex Cells (Gametes) 2: Meiosis & Sexual Reproduction
Contain half the genetic material of a body cell.
DIFFERENCES: Haploid vs. Diploid 2: Meiosis & Sexual Reproduction
Body cells are diploid (full set); sex cells are haploid (half set).
DEFINE: Meiosis 2: Meiosis & Sexual Reproduction
The specialized division that produces haploid sex cells
MEIOSIS: Outcome 2: Meiosis & Sexual Reproduction
Produces four unique haploid daughter cells.
MEIOSIS: Chromosome Stability 2: Meiosis & Sexual Reproduction
Meiosis prevents the chromosome count from doubling every generation.
DEFINE: Fertilization 3: Fertilization & Growth
The union of a sperm cell and an egg cell.
DEFINE: Zygote 3: Fertilization & Growth
The first cell of a new organism; contains a full set of chromosomes (half from each parent).
CONTINUATION: Development. WHAT OCCURS AFTER? 3: Fertilization & Growth
After fertilization, the zygote uses mitosis to grow into a multicellular organism.
UNDERSTAND: Variation 3: Fertilization & Growth
Because the zygote has mixed DNA, the offspring is genetically different from both parents.