1. Process of meiosis

2. Asexual vs. sexual reproduction
Asexual Reproduction
Sexual Reproduction
Uses only ________Produces clones—genetically identical offspring
Fast and effective reproduction to spread organism
No________
Combination of two ______sex cells
Fertilization: Combines genetic information from two separate cells with ½ of the original genetic information of parent organism
________are from separate parents. (female = egg, male = sperm)
_______ (new individual) has two sets of chromosomes, one from each parent.
Process changes diploid cells to haploid gametes—leading to an increase in ______ of offspring

3. Asexual vs. sexual reproduction
What is the advantage of an organism that reproduces sexually rather than asexually?
An organism that reproduces sexually will have _______ genetic diversity than one that reproduces asexually.

4. Meiosis i Four Phases: Genetic diversity results from meiosis I.
Prophase I
Metaphase I
Anaphase I (and)
Telophase I
Genetic diversity results from meiosis I.

5. Prophase I ____________ (same) chromosomes pair (synapsis)
Homologous pairs called tetrads (bivalents)—two chromosome with four chromatids
Nuclear membrane dissolves
Chromosomes attach to ______ fibers and begin to move

6. Metaphase I
Homologous chromosomes (tetrads or bivalents) line up at the equator to form tetrads.
Random orientation results in diversity.
_________ chance of getting either parent’s homologue for each chromosome
Tetrad

7. Anaphase I Homologous chromosomes separate.
Chromosomes with ______ chromatids move to opposite poles.

8. Telophase I
Nuclear membrane begins to _____ Cell may quickly move to meoisis II

9. Meiosis II
Similar to mitosis BUT no synthesis phase (no DNA replication)
Chromatids are NOT identical because of _________ over (recombination).
Separates chromatids and produces two daughter cells with ____ chromosomes that have one chromatid each

10. Important Concepts!!!
Crossing Over: Exchange of genetic information between _________ chromosomes that results in recombinant chromosomes and genetic________

11. Important Concepts!!!
Independent Assortment: Chromosomes randomly line up during metaphase I, and there are various ways that the homologous chromosomes may line up—again resulting in genetic____________.