Dr. Load

Bio Study Guide for the Final! Chapter 8 * Sexual fostering * Two p arents (two divergent cells) * Offspring are a combination of parents * Asexual Reproduction * star parent * Offspring are identical to parent * Types: * main types Binary nuclear fission prokaryotes and simple protozoa duplicate deoxyribonucleic acid and split in two * Budding yeast duplicate their deoxyribonucleic acid and brisk beingness buds from parent * Regeneration simple organisms can grow lost separate or produce offspring (starfish) * Chromosomes * Structures containing desoxyribonucleic acid and protein in the nucleus * human race cells about 30,000 genes grouped into chromosomes * 46 in somatic cells (body cells) * 23 in gametes (sperm/egg) * DNA is wrapped around histone (proteins) * Appearance of DNA differs dep ending on tact stage of cell * Chromosomes only seen when cell is dividing * chromatin low-cal fibers of DNA in nondividing cells * The Cell Cycle * Sequence of events in life of a cell * 1.

Inter leg (90% of a cells life preparing for division) * G1 cell growth, production of proteins and organelles * S DNA price reduction (replication) * individual(a) chromosomes become doubled; made of 2 sister chromatids attribute at centromere * G2 synthesis of proteins need for division * 2. Mitotic phase (where the cell splits) * Mitosis nuclear divi sion * Cytokinesis cytoplasmi! c division * Stages of Mitosis * 1. Prophase * chromatin granule condenses into chromosomes * Sister chromatids joined at centromere * nuclear envelope and nucleolus disappear * Mitotic spindle forms (from pole to pole) (made of microtubules) * Centrioles (animal cells) move to poles * spike microtubules attach to chromatids at kinetochore * 2. Metaphase *...If you want to get a wide-cut essay, order it on our website: OrderEssay.net

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