genetics and genomics for healthcare © 2013 nhs national genetics and genomics education centre...
TRANSCRIPT
Genetics and genomics for healthcarewww.geneticseducation.nhs.uk
© 2013 NHS National Genetics and Genomics Education Centre
Passing on genetic information from parents
to childrenAn explanation of autosomal
recessive inheritance
Genetics and genomics for healthcarewww.geneticseducation.nhs.uk
© 2013 NHS National Genetics and Genomics Education Centre
• Here are some PowerPoint teaching slides which demonstrate the transmission of an autosomal recessive condition from parent to child, please feel free to use these within your teaching
• Some parts of the animations run automatically; others require a mouse click
• Most slides have notes with further information
Genetics and genomics for healthcarewww.geneticseducation.nhs.uk
© 2013 NHS National Genetics and Genomics Education Centre
Hundreds of genes are located on each chromosome (The dark bands on the chromosomes are due to a special staining technique and are not genes as these are too small to see)
The 46 human chromosomes seen down the microscope
Genetics and genomics for healthcarewww.geneticseducation.nhs.uk
© 2013 NHS National Genetics and Genomics Education Centre
The 46 human chromosomes arranged in their 23 pairs (these are the chromosomes of a normal male)
Genetics and genomics for healthcarewww.geneticseducation.nhs.uk
© 2013 NHS National Genetics and Genomics Education Centre
Position of particular gene
Chromosomepair
Genetics and genomics for healthcarewww.geneticseducation.nhs.uk
© 2013 NHS National Genetics and Genomics Education Centre
Has the condition
Unaffected carrier for the
condition
Altered gene Altered gene
Altered geneUsual gene
Parents
Sperm or eggs
Autosomal recessive inheritance where both parents are carriers
Carrier for the
condition
Carrier for the
condition
Parents
Sperm or eggs
At conception
Autosomal recessive inheritance where both parents are carriers
Carrier for the
condition
Carrier for the
condition
Parents
Sperm or eggs
At conception
Autosomal recessive inheritance where both parents are carriers
Carrier for the
condition
Carrier for the
condition
Does not have the condition, non-
carrier
Carrier for the
condition
Has the condition
Carrier for the
condition
Genetics and genomics for healthcarewww.geneticseducation.nhs.uk
© 2013 NHS National Genetics and Genomics Education Centre
This animation is part of a series describing modes of inheritance
To access these and other resources for teaching and
learning genetics, please visit:
www.geneticseducation.nhs.uk