Wayne : Experiment on DNA model

  1. How are chromosomes, DNA, and genes related to one another?
     Genes are found on DNA and DNA strands forms chromosomes: DNA consists of sequence of nitrogen bases (A,T,C and G) these bases are linked together by  bonds forming the backbone of the DNA strand, the DNA is a molecule that carries the genetic instructions which are genes. DNA strands containing these genetic instructions (genes) are packed in the form of chromosomes, the long strands of DNA are wrapped around protein complexes called nucleosomes which consists of protein called histones, the DNA in chromosomes serves as the source for transcription, during cell cycle the number of chromosomes are replicated and every cell gets a copy of the chromosomes. https://en.wikipedia.org/wiki/File:Chromosome_DNA_Genesvg
  2. Explain what these pieces represent:
    • Licorice : represents sugar/phosphate backbone
    • Marshmallows (each colour) :
      Cytosine (C)= Pink         Adenine (A)= Yellow
      Thymine (T)= Orange   Guanine (G)= Green

 

3.How did this activity help you understand the structure of DNA.

In this science projects, we made a model of a deoxyribonucleic acid (DNA) molecule which helped me to understand more        about DNA  molecules give instructions, provide a road map, and lay out rules for the development and  functioning of all living cells in organisms.