dna_intro_part_1_a

dna_intro_part_1_a - In your teams draw the Punnett Sqaure...

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JS 196e: Scientific Basis of DNA Typing continued and Methods used to Study DNA I. Pre class activities a. Quiz b. Assignment and announcements II. Learning Objectives Definition and Inheritance review Introduction to DNA- continued  a. DNA structure b. Be able to draw DNA structure – Base Pairing AT, GC c. Understand DNA replication  Summary of Introduction to DNA  Overview of Methods used in Forensic DNA typing  Screening Extraction Quantification
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Assignments and Announcements Friday 9 Feb: Guest lecture by Dr. Chris Chen of CCNY on nanotechnology- 1 point extra credit for attending and writing a 500 word summary Required assignments for 12 Feb Work on Laboratory Notebooks Study for a quiz Read Butler C3/InmanC2 Review : Special collection guidelines for Biological Evidence- http://www.cacnews.org/wordfiles/DNA%20SampleHandling.doc
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Where’s Daddy? PCR product size (bp) 11 14 11 12 14 8 14 12 12 8
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Inheritance Review Dad is homozygous (A, A) and mom is heterozygous (A, a). In your teams, draw the
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Unformatted text preview: In your teams, draw the Punnett Sqaure that demonstrates the inheritance of these alleles. What percentage of their children will be heterozygous? DNA Structure What is it? Bases (AGCT) form the stairs of the ladder, are faithfully paired and exhibit differences. P S-A : T-S P P S-G : C-S P P S-A : T-S P P S-G : C-S P Sugars (S) and phosphates (P) form the sides of the ladder ( identical for all DNA ). Bases (AGCT) form the stairs of the ladder, are faithfully paired by hydrogen bonds and exhibit differences. A : T and G : C A = T G ≡ C T = A A = T C ≡ G T C C A G G T A G C T = A T = A C ≡ G A = T A = T G ≡ C 5’ 3’ 3’ 5’ 3’ 3’ 5’ denatured strands hybridized strands Hydrogen bonds C ≡ G C ≡ G G ≡ C Phosphate-sugar backbone...
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