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This test is run by .
Note that your final mark will not be saved in the system.

14. Variation and inheritance Pindrop

Running Total

Attempt

1 of 3

Click on a top label, then click on its correct position on the diagram. Or, drag a top label and drop it onto the correct position. Position all the labels before clicking ‘Check’.

The gene for eye colour has an allele for blue eye colour and an allele for brown eye colour.

The allele for brown eyes is dominant, while the allele for blue eyes is recessive.

For eye colour:

A person with brown eyes could have the alleles BB or Bb

A person with blue eyes can only have bb

A couple have a child. The mother has blue eyes. The father has brown eyes. Complete the Punnett square diagram to show the possible eye colour of the baby.

Blue eyes

Brown eyes

This is your 1^st attempt! You get 3 marks for each one you get right. Good luck!

Pass Mark

70%