• Question: Why are people so different than each others when we come from the same nucleus?

    Asked by 774mutg47 to Thomas on 15 Nov 2016.
    • Photo: Thomas McLoughlin

      Thomas McLoughlin answered on 15 Nov 2016:

      Each of us inherit half of our chromosomes (genes are found on the chromosomes) from our mother and the other half from our fathers. This is why people say that babies are like their Mum or Dad-this is called genetic inheritance.
      We have two sets (diploid) of 23 chromosomes in all our cells with the exception of the sex cells (egg or sperm) which only have one set of chromosomes each-haploid. For more info go to google

Comments

  • Photo: Emma

    Emma commented on :

    Yes, we are all made from DNA, which is a mixture of just four molecules (A,C,T and G) in a DNA sequence. The DNA sequence incorporates different genes that could express different characteristics. Some of these genes will be turned on in some people, and turned off in others. That is what makes us different, even though we have similar DNA.