TEST YOUR KNOWLEDGE

Your time starts . . . now!

SECTION 1: TRANSLATE THE GENOTYPE

"Translate" the following genotypes by working out what a dog with that genotype would look like. They start off easy, with just a few locii to work with, then they start to get harder!

1. bb/dd

2. MM/Bb

3. Hh/mm/sⁱsⁱ

4. A^ya^t/bb/dD

5. a^ta^t/E^me/Mm/dd

6. a^wa^t/BB/DD/ee/gg/hh/Kk^br/mm/s^wsⁱ/Tt

SECTION 2: PREDICT THE LITTER

Using Punnet squares (just jot them down on a piece of paper if you like), work out the possible genotypes of the puppies produced from the following breedings.

1. Bb X bb

2. MM X Mm

3. Bb/Mm X bb/MM

4. A^yA^y/Bb/Mm X aa/Bb/Mm

5. k^brk/A^yA^y/Bb/Mm X kk^br/aa/Bb/Mm

6. k^brk/A^yA^y/Bb/Mm/sⁱsⁱ X kk^br/aa/Bb/Mm/s^pS

FOR EXTRA MARKS

Work out what all those puppies would look like!

SECTION 3: WORK OUT THE GENOTYPE

Work out the genotype of the dogs below using the format A locus/B locus/D locus/E locus/K locus/M locus/S locus/T locus. You can miss out the C, G and H locii (aren't I kind?). If it's impossible to tell which gene the dog has, or if it doesn't matter what it is (e.g. if a dog has a copy of K, it doesn't matter if it's Kk or K^br), just put a dash (-).

ANSWERS

. . . Hang on, you thought I was going to give you the answers?

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