Download presentation
Presentation is loading. Please wait.
Published byMalcolm Atkinson Modified over 9 years ago
1
DNA Structure and Function
2
DNA Genetic instructions –Passed on Genes encode proteins –Gene = information –Protein = action hero (does the work)
3
A DNA Helix ATGCATGC Vector DNA color by Greg Emmerich is licensed under CC BY-SA 2.0 Two strands Each made of nucleotides
4
Double Helix Two complementary strands –Complementary base pairing –A with T –C with G
5
Genes encode Proteins Gene sequence –Order of nucleotides in DNA –A, G, C, T –Specific order (spelling) – specific protein –Amino acid sequence of protein
6
Prepared by the Biological and Environmental Research Information System, Oak Ridge National Laboratory, genomicscience.energy.gov/ and genomics.energy.gov/.genomicscience.energy.gov/ genomics.energy.gov/
7
A DNA Helix ATGCATGC The BASES (A, T, G, C) “spell” the instructions Vector DNA color by Greg Emmerich is licensed under CC BY-SA 2.0
8
Prepared by the Biological and Environmental Research Information System, Oak Ridge National Laboratory, genomicscience.energy.gov/ and genomics.energy.gov/.genomicscience.energy.gov/ genomics.energy.gov/
9
In cells DNA sequence (genotype) –-> transcribed to RNA RNA –-> translated to protein Protein does some job –> contributes to phenotype –Measurable/observable trait
10
Genotype & Phenotype Genotype –Genetic makeup Phenotype –Appearance (or measurable trait)
11
Build a DNA molecule http://learn.genetics.utah.edu/conten t/molecules/builddna/http://learn.genetics.utah.edu/conten t/molecules/builddna/
Similar presentations
© 2025 SlidePlayer.com. Inc.
All rights reserved.