Match each observation to its pattern

Exercise and reference answers

Matching pairs

1. Left

   Pink F1 flowers

   Right

   Neither allele is fully dominant

2. Left

   Blood group AB

   Right

   Both alleles show up at the same time

3. Left

   Phenylketonuria

   Right

   One gene changing several characters

4. Left

   Trisomy of 21

   Right

   Down syndrome, with forty seven chromosomes

5. Left

   Genes on one pair

   Right

   A linkage group travelling together

6. Left

   Haemophilia

   Right

   A gene carried on the X chromosome

Instructions

Tap an inherited observation, then tap the pattern of inheritance that produces it.

Explanation