'Cell division mitosis' presentation slideshows

Course in Molecular Biology

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Chromosomes and Cell Reproduction

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Unit 2

Unit 2. Cell Division Mitosis and Meiosis I and II. Mitosis Word Meanings. Chromosome Etymology: Greek : Chromo = colored soma = body Centromere Centro = center mere= part Inter Etymology: Latin: between Pro- Etymology: Greek: before Meta- Etymology: Greek: after Ana-

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THE HUMAN LIFE CYCLE

THE HUMAN LIFE CYCLE. CELLS DIVIDING IN AN EARLY EMBRYO. THE CELL CYCLE = THE DAY-TO-DAY LIFE OF A CELL. CELL NUCLEI. CHROMOSOMES IN THE CELL NUCLEUS - CHROMOSOMES ARE MADE OF DNA. CHROMOSOMES DUPLICATE BEFORE CELLS DIVIDE. A DIVIDING CELL. CELL DIVISION - MITOSIS.

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Most humans have 46 chromosomes (23 pairs) in their body cells.

Most humans have 46 chromosomes (23 pairs) in their body cells. They have only 23 chromsomes in their gametes. Why do you think gametes only have half the number of chromsomes?. Talk to the people around you about what a Punnett square is used for.

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Reproduction of Cells

Reproduction of Cells. Cell. DNA. Double-Stranded. DNA. DNA Replication. centromere. homologous chromosomes. A Pair of Homologous Chromosomes. Chromosome structure. Chromosome consists of two identical halves Each half is a chromatid

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Learning Intentions I can state that the nucleus controls all the cells activities.

Learning Intentions I can state that the nucleus controls all the cells activities. I can state that cell division results in the increase in the number of cells in an organism. I can state that when a cell divides two new identical daughter cells are produced.

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Cells and Tissues

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DNA Structure, DNA Replication and Mitosis

DNA Structure, DNA Replication and Mitosis. DNA, chromosomes and gene structure revision. Structure of DNA. DNA is made from Nucleotides that have 3 parts: 5 carbon Sugar (deoxyribose) Phosphate group Nitrogen base (Adenine, Thymine, Guanine or Cytosine).

178 views • 15 slides