Biology 1001A Study Guide - Quiz Guide: Telophase, Deoxycytidine Triphosphate, Kinetochore
Document Summary
Cycle 2 xed: selective pressures act on phenotype of organisms. Meiosis produces daughter nuclei that are different; half number of chromosomes that parental nuclei had. Most eukaryotes have two copies of each type of chromosome (diploid; 2n) Other eukaryotes have one copy of each chromosome (haploid; 1n) Duplication of the chromosome forms two sister chromatids. Held together by sister chromatid cohesion; encircle the sister chromatids along their length. Dna replication increases dna content not chromosome number. Cytokinesis (separation of cytoplasm) occurs at beginning of mitosis but completes itself at the end of mitosis. Internal regulatory control trigger each cell phase: 5 phases, prophase, prometaphase, metaphase, anaphase, telophase, prophase- chromosomes are condensed, nuclear envelope is intact and microtubules. Result is two genetically identical daughter cells. 12. 3b dna polymerases: dna is replicated by dna polymerase, deoxyribonucleotide triphosphates are substrates for polymerization reaction cause by dna polymerase, nucleoside triphosphate (ex. Atp in cellular respiration: 4 deoxyribosenucleoside triphosphates in.
