B1 - You and Your genes 0.0 / 5 ? BiologyYou and Your GenesGCSEOCR Created by: Lettyscarbaxter-daviesCreated on: 04-05-14 14:39 What are Chromosomes? Chromosomes are found in the nucleus of most cells. They consist of long strands of substance called DNA. 1 of 5 What is a Gene? A section of DNA that has the genetic code for making a particular protein. 2 of 5 How many Chromosomes are in a human body cell? 23 pairs or 46 individual chromosomes. You get 23 from your mother and 23 from your father. 3 of 5 What are Alleles? Different versions of the same gene are called alleles. They can be either recessive or dominant. 4 of 5 What is Cloning? Cloning occurs naturally in some plants and in human identical twins, and it is now possible to clone animals artificially. 5 of 5
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