PPT-DNA Replication Cell Cycle- Interphase (S phase)

Honors Biology Mrs Sims Lets Start with a Video Please view the video before you start this presentation DNA Replication Animation This animation is created by McGraw Hill the publisher of your textbook. Cell Increase and Decrease. Cell division increases the number of somatic cells. Consists of mitosis (division of the nucleus) and cytokinesis (division of the cytoplasm). Apoptosis, programmed cell death, decreases the number of cells. The . cell cycle. , or . cell-divisional cycle. , is the series of events that take place in a cell leading to its division and duplication (replication). . In cells without a nucleus (prokaryotes), the cell cycle occurs via a process termed binary fission. . Unicellular organism- cell division reproduces . an entire . organism. Multicellular. organisms- cell . division . can . produce . growth or progeny. Cell . division functions in reproduction, growth, and repair. BIO…. LIFE….. THINK ABOUT THIS: . What do we do in our lifetime?. What are the major stages of our life?. What are the Major stages of physical development in our lives?. What would it look like. The . cell cycle. is a repeated pattern of growth and division that occurs in eukaryotic cells. . This cycle consists of three phases: G1, S, G2. The first phase represents cell growth while the last two phases represent cell division.. Directions: Front of card write term. On back write definition and draw picture . Chromosomes. Thread-like structure made of coiled DNA. Gene. Segment of DNA that codes for a specific trait. Nucleotide. The stage where a cell spends most of its life.. Period of growth and development.. This is where cells just “do what they do.”. Muscle and nerve cells are always in interphase.. Why?. Interphase. G1 phase is first growth or gap phase. S phase is DNA synthesis phase. G2 phase is second growth or gap phase. MITOTIC CELL DIVISION. It normally occurs . in:. Haploid cells. Diploid cells. Polyploid. ANA 205. 2. Differentiation. - development of a fertilized egg cell to form a complex, multicellular organism involving cellular replication, growth and progressive specialization for a variety of functions. . . REPLICATION – GENERAL PRINCIPLES. START. Must be ready . Must know where to start . FINISH. Must all finish . Must ensure that each piece of DNA is replicated only once . Therefore must know where to finish . Mitosis, Protein . Synthesis. Week 8. 9/29 . DNA Replication . 11.1. Obj. TSW demonstrate base pairing rules of DNA Replication by constructing a 2-D model of DNA with paper. . P. 68 NB. Replication Video. DNA Structure Simulation. Before we begin, let’s investigate the way DNA molecules are set up!. http://learn.genetics.utah.edu/content/molecules/builddna/. The Structure of DNA. What is DNA?. A bit about DNA…. It is the growth and division of single cell into daughter cells and duplication (replication).. In . prokaryotic cells, . the cell cycle occurs via process termed binary fission.. In . eukaryotic cells, . Warm. up!. What. . makes. . the. new DNA . strand. . complementary. . to. . the. original . strand. ?. Vocabulary. . tip. Compl. e. ment. :. . either. . of. . two. . parts. . that. completes a .