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Starter for 10 ....

Learn about genotype, DNA structure, and inheritance through interactive activities and models. Understand the importance of DNA in determining the genetic makeup of an organism and its replication process. Explore the structure of a DNA nucleotide and the bonding of nucleotides to form a sugar-phosphate backbone. Research famous scientists and create your own model of DNA.

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Starter for 10 ....

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  1. Starter for 10 .... Place the statements in order ...... One card with 1 meaning Linked to a word on another

  2. Higher Human Biology Unit 1 – Human CellsDNA

  3. Learning Outcomes Content • Explain the term genotype. • Describe what the DNA molecule is made up from and how it is bonded. Process • Model making! Benefit • Understand how inheritance is carried out. • Explain how CSI DNA works!

  4. New Information The genotype (genetic makeup of an organism) of a cell is determined by the sequence of bases in its DNA. DNA is the molecule of inheritance and can direct its own replication. Made up of nucleotides.

  5. Phosphate Group O O=P-O O 5 CH2 O N Nitrogenous base (A, G, C, or T) C1 C4 Sugar (deoxyribose) Pentose C3 C2 DNA Nucleotide Structure of a DNA nucleotide (deoxyribose sugar, phosphate and base).

  6. Phosphate Group O O=P-O O 5 CH2 O N Nitrogenous base (A, G, C, or T) C1 C4 Sugar (deoxyribose) Pentose C3 C2 DNA Nucleotide Structure of a DNA nucleotide (deoxyribose sugar, phosphate and base). My house (sugar), a garage (base) and a satellite dish (phosphate group)

  7. DNA Backbone Nucleotides bond to form a sugar–phosphate backbone. Base pairs (adenine, thymine and guanine, cytosine,) held by weak hydrogen bonds forming a double helix. Double stranded antiparallel structure with deoxyribose and phosphate at 3' and 5' ends of each strand.

  8. Sugar-phosphate backbone Nucleotides bond to form a sugar–phosphate backbone. Covalently bonded (strong bond)at position 3 and 5 carbon.

  9. DNA 4 Bases ..... 2 purines (double garage; double ringed structure) 2 pyrimidines (single garage; single ringed structure) Complementary base pairing due to hydrogen bonding A + T have 2 bonds C + G have 3 bonds

  10. New Information The genotype of a cell is determined by the sequence of bases in its DNA. DNA is the molecule of inheritance and can direct its own replication. Structure of a DNA nucleotide (deoxyribose sugar, phosphate and base). Nucleotides bond to form a sugar–phosphate backbone. Base pairs (adenine, thymine and guanine, cytosine,) held by weak hydrogen bonds forming a double helix. Double stranded antiparallel structure with deoxyribose and phosphate at 3' and 5' ends of each strand.

  11. 5 O 3 3 O P P 5 5 C O G 1 3 2 4 4 2 1 3 5 O P P T A 3 5 O O 5 P P 3 DNA Double Helix

  12. Activity • Research one of these AMAZING scientists • Make your own model of DNA!

  13. Review Comment on each others DNA model; • Positives comments • Improvements that could be made

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