PPT-Unit 2.2 RELATIONSHIP BETWEEN DNA, CHROMOSOMES AND

GENES DNA DNA  the chemical inside the nucleus of a cell that carries the genetic instructions for making living organisms The material inside the nucleus of cells that carries genetic information. EQ:. What is the importance of meiosis in providing genetic variation?. . SPECIALIZED CELLS. You have many specialized cells in your body that can be divided into two groups. . 1. . . SOMATIC. = body cells; make up most of your . Essential idea: Chromosomes carry genes in a linear sequence that is shared by members of a species.. The . asian. rice (. Oryza. sativa. ) genome can be seen illustrated . above. . Rice possesses up 63,000 genes divided up between 12 chromosomes. and Genes. How are they related?. http://commons.wikimedia.org/wiki/File:Chromosome.gif. DNA. Chromosomes. Genes. http://commons.wikimedia.org/wiki/File:Chromosome.gif. ?. DNA. Chromosomes. Genes. Cell. Section 5.2. 1. Objectives. SWBAT describe the structure of a chromosome.. SWBAT follow chromosomes through the processes of mitosis and cytokinesis.. 2. Vocabulary. Chromosome. Histone. Chromatin. Chromatid. diploid. Sex cells (gametes/germ cells) have only one set of chromosomes . . = . haploid. . That means when fertilization . occurs, the new individual will. have the correct number of chromosomes.. .. DNA . in cells is usually spread out so transcription can take place.. During . cell division, . chromosomes. form. .. Chromosomes are . DNA. and protein (. histones. ) coiled into a rod.. After DNA replicates, two . Associate Professor and Head. Department of Sericulture. Yuvaraja’s College, . University of Mysore, Mysore, India. 11-Sep-20. 1. www.hbmahesh.weebly.com. CHROMOSOMES. The chromosomes are nuclear components of special organization, individuality and function. They are capable of self reproduction and play a vital role in heredity, mutation and evolution.. DISCLAIMER: • The presentation includes images which are taken from Google images or books . • They are being used in the presentation only for educational purpose . • The author of the presenta They are also called as mega chromosomes. . These chromosomes are very long and thick in appearance during metaphase than normal chromosomes.. Hence they are called as Giant chromosomes.. The Giant chromosomes are of two types-. .. That is because DNA contains the instructions for making proteins.. And proteins determine the traits of an organism (you, for example). . 2. . The Structure of DNA . Where is the DNA in these pictures?. Problems arose however regarding the following question:. Why are the number of alleles which undergo independent assortment greater than the number of chromosomes of an organism?. This was . explained by the . Important. Notes. For revision only. Objectives: . Describe the number, structure, and classification of human chromosomes . Explain what a Karyotype is and how it is obtained. . Describe chromosomal banding and explain its use. . Chromatin. - unwound DNA (loose). . Copied. Sister chromatids. - two identical copies of DNA (loose). . Coiled and Connected. Chromosomes. - two coiled, identical copies of DNA connected to each other (tight). Leading TV Unit Manufacturer in Pune Innovative Designs, Superior Quality at Adeetya's Kitchen & Furniture https://adeetyas.com/tv-unit-manufacturers-in-pune.php