Bio Lab Final SG.docx - Bio Lab Final Study Guide Meiosis stages o Interphase DNA replication o Prophase I crossover occurs o Metaphase I homologous

Bio Lab Final SG.docx - Bio Lab Final Study Guide Meiosis...

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Bio Lab Final Study Guide Meiosis stages o Interphase- DNA replication o Prophase I- crossover occurs o Metaphase I- homologous xsomes separate; reduction of xsome # o Anaphase I o Telophase I o Interkinesis o Prophase II o Metaphase II- chromatids separate o Anaphase II o Telophase II o Interphase 23 xsomes in a spermatid Spermatogenesis- primary spermatocyte splits into secondary spermatocytes then into 4 spermatids producing 4 male gametes (spermatozoa) Oogenesis- primary oocyte splits into one polar body and a secondary oocyte then into 3 polar bodies and 1 female gamete (ovum) Heredity o Monohybrid testcross- testcross of one trait (e.g. the color of corn) o Dihybrid testcross- testcross of two traits (e.g. the shape of the corn) Calculate expected Degrees of freedom Punnett square Phenotype- physical expression of a gene. Genotype- combination of alleles for a gene 3 differences of RNA & DNA o DNA is double-stranded, has dioxyribose, and thymine o

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