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Unit 4 Biology Vocab

Sexual and Asexual Reproduction w/ Mitosis and Meiosis

New Cell Daughter Cell
Results in new offsprings from the union of 2 parents-Has variation. Sexual Reproduction
Is one-half of two identical copies of a replicated chromosome. Chromatids
Body Cells Somatic
Sex Cells Gametes
Original Cell Parent Cell
Total number of required chromosomes; 46 chromosomes(2n) =46 chromosomes. Diploid
1/2 the required number of chromosomes; 23 chromosomes(n)-Haploid Haploid
Preparation and growth of DNA; no cell division; DNA Replication occurs during this time. Interphase
Located in nucleus; contains heredity information. Chromosomes
Asexual cell division; occurs in somatic(body) cells. Mitosis
Sexual cell division; occurs in gametes (sperm,egg). Meiosis
Male gametes; 4 produced each time sex cell divides. Sperm
Female gametes; 4 produced each time sex cell divides. Egg
Cell Division; Prophase, Metaphase, Anaphase, Telophase. PMAT
Final step in cell division where cell splits into 2 completely equal parts Cytokinesis
Occurs when a cell loses its ability to control cell division. Cancer
Exchange of genetic material during meiosis, causes genetic variation among sex cells(gametes). Crossing Over
Failure of homologous chromosomes to separate properly resulting in an unequal number of chromosomes in each cell. Cause of DOWN SYNDROME (TRISONOMY 21). Nondisjunction
Results in two offsprings from one parent-NO variation. Asexual Reproduction
Holds the chromatids together at the center of the chromosomes. Centromere
Differences in cells. Variations
Created by: 00025680