Pages

Wednesday 6 November 2019

Dna - note taking!

Dna - note taking!

Today Room 4 watched a short video about cells and how they’re connected. Below this
introduction is my what I’ve been taking notes of. Learning more about cells and how they’re
connected was incredibly interesting. I really hope you enjoy! 
  
How is Dna, chromosomes and gene connected? Today we will be talking about how Dna,
chromosomes and genes relate. 


Our body is made up of hundreds and thousands of cells. Cells are only seen under a microscope. 


Humans have 23 pairs of chromosomes. Chromosomes have different sorts of information about
dna.


 Dna is made up of 4 basis (AKA) 4 different things. A,G,C,T. Dna is in the chromosome, the
chromosome is in the nucleus, and the nucleus is in the cell. 


The reason why Dna is shaped as a ladder is because…
A always joins with T  and G always joins with C


When a sequence of three pairs come together they create a word, then when we add more
words together we then create a chapter which is called gene.  


Gene’s are like chapters in a book. More than one or two genes is what creates our chromosome.
Chromosome is what lives in the nucleus.


Protein base letters:
Codons = words
Gene = Chapter
Chromosome = Book

1 comment:

  1. Hi Hinerangi,
    I enjoyed reading your DNA note taking. Did you know that by the time you are an adult your body will have about 37 trillion cells? All those cells with nuclei in them (like your cheek cells) have those 23 pairs of chromosomes in each of them. One of each of those pairs comes from your mother and one of each pair from your father, so in fact you have two copies of each gene (a gene is a stretch of DNA that has the instructions to make a protein). Scattered across these 23 chromosomes you have, in fact, over 20,000 genes. The proteins these genes make control all sorts of things - the colour of your eyes, how tall you will grow, the enzymes you use to digest your food, how your neurons communicate in your brain. I hope you find this sort of biology amazing - and there is lots left to discover!

    ReplyDelete