Sci Dna Worksheet

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Associate Program Material DNA Worksheet Answer the following in at least 100 words: 1. Describe the structure of DNA. DNA is made of chemical building blocks called nucleotides. These building blocks are made of three parts: a phosphate group, a sugar group and one of four types of nitrogen bases. To form a strand of DNA, nucleotides are linked into chains, with the phosphate and sugar groups alternating (. DNA has a double helix structure and has two strands running in opposite directions (UIC, 2013). 2. How does an organism’s genotype determine its phenotype? Genotype determines the genetic makeup of an individual organism. One’s genotype functions with a set of instructions for the proper growth and development of your body. The word genotype is used when discussing genetics or a particular trait. Phenotype is the observable physical characteristics of an individual organism, this is determined by one’s genetic makeup and environmental influences (Science Hub, 2011). 3. Describe each stage of the flow of information starting with DNA and ending with a trait. Information will start with the DNA traveling to the RNA and into the protein. This information flow will also be followed through the cell as it travels from the DNA in the nucleus, and the Cytoplasm, then to the Ribosomes and the Endoplasmic Reticulum, and finally to the Golgi apparatus, this system packages the final products for export outside the cell (Science Daily, 2013). Reference (2013). DNA structure. UIC DNA Structure in Detail. Science Learning Hub. (2011). How Environmental Factors Affect Phenotype. Science Daily. (2013). Trait Biology. In Biology, a Trait or Character is a Feature of an Organism. (2013). Deoxyribonucleic Acid (DNA). What is DNA made of?

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