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Family tree

This video shows how a son inherits an exact copy of his father's Y chromosome.

Structure and features

View the resources and video from NOVA: Lost Tribes of Israel, your task is to complete a family tree by comparing the DNA sequences of Y chromosomes of known men to the sequences of their relatives.

 

Teacher notes

  • Science understanding strand
  • Biological sciences
  • Year 10
  • Genetics.

The video shows how the Y chromosome is inherited from the father.

It also shows how the male determines the sex of a child.

This would lead onto pedigrees and dominant and recessive inheritance and sex-linkage inheritance.