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| 5639292477 | Oogenesis | Eggs in ovaries halted before anaphase I meiosis I completed during maturation meiosis 2 completed after fertilization | 0 | |
| 5639292478 | Nondisjunction | problems with meitotic spindle fibers cause Incorrect # of chromosomes because chromosomes don't separate properly | 1 | |
| 5639292479 | Nondisjunction in meiosis I | Homologous chromosomes do not separate properly (all cells abnormal) | 2 | |
| 5639292480 | Nondisjunction in meiosis 2 | Half cells abnormal, sister chromatids fail to separate in meiosis 2 | 3 | |
| 5639292481 | Trisomy disorder | 2n+1, cells have 3 copies of one chromosome | 4 | |
| 5639292482 | Monosomy disorder | Cells have only one copy of a chromosome | 5 | |
| 5639292483 | Syndrome | A survivable chromosomal mutation | 6 | |
| 5639292484 | Down syndrome | 3 copies of chromosome 21, the smallest chromosome, not least amount of genes, frequency correlates with age of mother | 7 | |
| 5639292485 | Prophase II | Spindle apparatus forms, chromatids still held at centromere | 8 | |
| 5639292486 | Telophase I and Cytokinesis | Cell has haploid set of chromosomes, cytokinesis creates cleavage furrow creating 2 cells, no replication between m I and m II | 9 | |
| 5639292487 | Metaphase II | Chromosomes position on metaphase plate, chromatids not genetically identical cuz of m I crossing over, kinetochores attach to spindle fibers | 10 | |
| 5639292488 | Anaphase II | Breakdown of proteins holding sister chromatids together, chromatids separate moving to opposite poles of cells, | 11 | |
| 5639292489 | Telephase II and cytokinesis | Nuclei form with haploid number of chromosomes, each 4 new cells genetically distinct | 12 | |
| 5639292490 | Heredity | The transmission of traits from one generation to the next | 13 | |
| 5639292491 | Variation | Differences between members of the same species | 14 | |
| 5639292492 | Genetics | The scientific study of heredity and hereditary variation | 15 | |
| 5639292493 | Gametes | A haploid reproductive cell, such as an egg or sperm. Gametes unite during sexual reproduction to produce a diploid zygote | 16 | |
| 5639292494 | Somatic Cell | Any cell in a multicellular organism except a sperm or egg | 17 | |
| 5639292495 | Locus | A specific place along the length of a chromosome where a given gene is located | 18 | |
| 5639292496 | Asexual Reproduction | The generation of offspring from a single parent that occurs w/o fusion of gametes. In most cases, the offspring are genetically identical to the parent | 19 | |
| 5639292497 | Clone | A lineage of genetically identical individuals or cells | 20 | |
| 5639292498 | Sexual Reproduction | A type of reproduction in which two parents give rise to offspring that have unique combinations of genes inherited from the gametes of the parents | 21 | |
| 5639292499 | Life Cycle | The generation-to-generation sequence of stages in the reproductive history of an organism | 22 | |
| 5639292500 | Karyotype | A display of the chromosome pairs of a cell arranged by size and shape | 23 | |
| 5639292501 | Homologous Chromosomes | A pair of chromosomes of the same length, centromere position, and staining pattern that possesses genes for the same characters at corresponding loci | 24 | |
| 5639292502 | Sex Chromosomes | A chromosome responsible for determining the sex of an individual | 25 | |
| 5639292503 | Autosome | A chromosome that is not directly involved in determining sex; not a sex chromosome | 26 | |
| 5639292504 | Diploid Cell | A cell containing two sets of chromosomes, one set inherited from each parent | 27 | |
| 5639292505 | Haploid Cell | A cell containing only one set of chromosomes | 28 | |
| 5639292506 | Fertilization | The union of haploid gametes to produce a diploid zygote | 29 | |
| 5639292507 | Zygote | The diploid product of the union of haploid gametes during fertilization; a fertilized egg | 30 | |
| 5639292508 | Meiosis | A modified type of cell division in sexually reproducing organisms consisting of two rounds of cell division but only one round of DNA replication. It results in cells w/ half the number of chromosome sets as the original cell | 31 | |
| 5639292513 | Meiosis I | The first division of a two-stage process of cell division in sexually reproducing organisms that results in cells with 1/2 the number of chromosome sets as the original cell | 32 | |
| 5639292514 | Meiosis II | The second division of a two-stage process of cell division in sexually reproducing organisms that results in cells w/ half the number of chromosome sets as the original cell | 33 | |
| 5639292515 | Prophase I | Chromosomes condense, crossing over, Synapsis, centrosome, movement, chiasmata, micro tubules attach to centromeres |  | 34 |
| 5639292516 | Synapsis | The pairing and physical connection of replicated homologous chromosomes during prophase I of meiosis | 35 | |
| 5639292517 | Tetrad | A set of 4 chromatids | 36 | |
| 5639292518 | Crossing Over | The reciprocal exchange of genetic material between non-sister chromatids during prophase I of meiosis | 37 | |
| 5639292520 | Metaphase I | Chromosomes line up on plate crossed over with independent assortment, chromosomes attached to micro tubule, | 38 | |
| 5639292521 | Anaphase I | Proteins holding chromatids together break down, chromosomes move to opposite poles of cell, | 39 | |
| 5639292522 | Recombinant Chromosomes | A chromosome created when crossing over combines the DNA from two parents into a single chromosome | 40 | |
| 5639292523 | Independent Assortment | The process of random segregation and assortment of chromosomes during anaphase I of meiosis resulting in the production of genetically unique gametes | 41 | |
| 5639292524 | Random Fertilization | Any possible egg can be fertilized by any possible sperm | 42 | |
| 5639292525 | How are karyotypes prepared? | By pairing up chromosomes based on size centromere location and staining patterns on a computer | 43 | |
| 5639292526 | What are the 3 steps of crossing over? | Breakage of DNA Crossing over Refusal of DNA | 44 | |
| 5639292527 | What happens to to most chromosomal mutations? | The baby will be aborted with high frequency, too disastrous, developmental problems result from biochemical imbalance, certain conditions tolerated | 45 |
