Chromosomes, DNA & Genes Grade 5 PDF
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Stonyhurst Southville International School
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Summary
This document is a presentation or learning material about chromosomes, DNA, and genes, suitable for Grade 5 students. It includes diagrams and definitions covering various aspects of genetics and cellular biology. The presentation introduces core concepts such as DNA, genes, chromosomes, and cell functions, providing a basic understanding of the subject.
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Grade 5 Chromosomes, DNA & Genes Learning Points Define keywords Describe the levels Explain the such as nucleus, of organization from difference between chromosome, DNA the nucleus to a the two sex and gene. gene. chromosome pairs....
Grade 5 Chromosomes, DNA & Genes Learning Points Define keywords Describe the levels Explain the such as nucleus, of organization from difference between chromosome, DNA the nucleus to a the two sex and gene. gene. chromosome pairs. Workplan Attendance/5s Science Routine Discussion Active Recall Wrap up/5s Cell Cell A cell is the smallest unit of life that can carry out all the functions necessary for living. It's like a tiny, living factory that can take in nutrients, produce energy, and reproduce to make new cells. Nucleus fun fact: Did you know that your body has about 37.2 trillion cells? Chromosome Nucleus The nucleus acts as the control center of the cell and is the storage site for genetic information. It contains Nucleus structures called chromosomes, which are made up of DNA. Chromosome Chromosome A chromosome consists of a single DNA molecule. The familiar cross shape of chromosomes appears when DNA replicates, coils, and condenses in preparation for DNA cell division (mitosis). DNA & Genes Gene DNA, or deoxyribonucleic acid, is like a set of instructions for living things. A section of DNA is called a gene. Genes have the codes that tell cells how to make specific proteins. Think of it like a recipe in a cookbook. The cookbook (DNA) has many recipes (genes), and each recipe tells you DNA how to make a different dish (protein). Easy-peasy! Locating a gene The images illustrate the different levels of organization, starting from the nucleus and moving to a chromosome, then to DNA, and ultimately to a gene. 23 Pairs Each human body cell contains 46 chromosome (23 pairs). The pairs carry the same types of genes. People with specific conditions and syndromes may have an extra chromosome. XX and XY Female XX The 23rd pair of chromosomes are called the sex chromosomes. In females, this pair is identical and labeled as XX, while in males, the pair is different and labeled as XY. Male XY The end of the presentation Chromosomes, DNA & Genes
