KS3 Y9 Genetics, Inheritance and Variation

Gap-fill exercise.

Name:_________________________Class:___________________Date:__________________

  
Fill in all the gaps, then press "Check" to check your answers. Use the "Hint" button to get a free letter if an answer is giving you trouble. You can also click on the "[?]" button if available to get a clue. Note that you will lose points if you ask for hints or clues!
   carry genetic information      characteristics      chracteristics      chromo      chromosomes      colour      DeoxyriboNucleic      different      DN      DNA      fertilised      fuse together      genes      half      information      inherit      inherited      large molecules      molecule      nuclei      sex cells      skin      unique      variation      wavy   
When we look at each other we find that we look . We say that each one of us (as individuals) have our own .

Our characteristics describe how we look and determine our eye , our colour and whether our hair is straight or .

Characteristics that children or offsprings get from their parents are said to be .

These inherited amongst children may be different. We call this .

Children in a family may have the eye colour of their parents but their hair may be different. This is called .

Offsprings characteristics from their parents. This is because they receive the from the father and the other from the mother.

These information is stored in the . We all have a unique . A or Acid are found in the of cells.

Imagine a DNA as a long string. Small parts of the DNA string will have the instructions for eye colour and another section for hair type.

These small parts are called . They are said to that control our characteristics. This makes us individuals.

are found in the and somes are found in the of cells.

Offsprings get their DNA when the from their parents meet together to form a egg. The sex cells contain only half of the parents information. A new complete set is made when the male and female gamete nuclei .

 

 

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