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Burke County Schools Morganton, NC

Holly Minnear, AIG Specialist

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NCSSM  IVC    

Courses  

Project  Lead  the  

Way  

Field Trips Sponsored by the AIG Department

“Designer Genes”

Presented by Burke County Public Schools

Director: Sharon Colaw AIG Specialists:

Denise Andrews, Karen Causby, Becky Chappell and Lisa Semple

Students will investigate the structure of DNA.

Next Generation Science Standards

Students will observe and understand characteristics inherited from parents.

Students will create a DNA structure to code and decode while identifying certain human traits.

DNA  Structure  � DNA  is  in  each  of  your  genes.  � DNA  molecules  are  arranged  in  a  special  order  in  a  ladder-­‐like  structure  called  a  Double  Helix.  

� A  molecule  of  DNA  is  made  up  of  millions  of  tiny  subunits  called  Nucleotides.  

   

Nucleotides  

Phosphate  

Pentose  Sugar  

*Base    

DNA  Structure  � The  phosphate  and  sugar  form  the  backbone  of  the  DNA  molecule,  where  as  the  bases  form  the  “rungs”.  

� There  are  four  types  of  nitrogen  bases.  

The  Four  Bases  of  DNA  

A Adenine  

TThymine  

G Guanine  

C Cytosine  

Complementary  Bases  

http://2.bp.blogspot.com/-FEf-DpkwDgg/U4VLs6ziWHI/AAAAAAAABEw/PgOmxKJYwHg/s1600/science_apple_tree.gif

http://i1.sndcdn.com/artworks-000039361396-roj0ub-original.gif ?30a2558

Adenine always pairs with Thymine Remember

The Apple goes with the Tree

Cytosine always pairs with Guanine Remember

The Car goes in the Garage

G

G

A

T

T

A

A

C

T

G

C

A

T

C

DNA  Structure  � To  crack  the  genetic  code  found  in  DNA  we  look  at  the  sequence  of  bases  

 � The  bases  are  arranged  in  triplets  called  codons  (coding  triplets)  

 “Recipe  of  Life”  

A  G  G  -­‐  C  T  C  -­‐  A  A  G  -­‐  T  C  C  -­‐  T  A  G  T  C  C  -­‐  G  A  G  -­‐  T  T  C  -­‐  A  G  G  -­‐  A  T  C  

     Decoding  the  Recipe:  Your  Task  is  to  extract  and  investigate  DNA.    You  will  build  a  double  helix  to  solve  for  certain  traits.  

http://www.vcasmo.com/video/jcshieh/5226 (2:32)

http://www.vcasmo.com/video/jcshieh/5456 (8:39)

Activity: DNA Extraction & Microscope Investigation

BREAKING DOWN THE BARRIERS

What  is  gene+cs?  �   https://www.youtube.com/watch?v=B_PQ8qYtUL0    

Introducing  the  Tree  of  Life  �   http://www.youtube.com/watch?v=M4zHVRLXkgw  

       

“Designer Genes”

Presented by Burke County Public Schools Director: Sharon Colaw

AIG Specialists: Denise Andrews, Karen Causby, Becky Chappell

and Lisa Semple