Download Video: Genetics-The Science of Dogs

Name _____________________________________________
THE SCIENCE OF DOGS
Period ________ Date ______________ Seat _________
Do your best to answer the following questions as you watch the video. After the video we will
discuss the answers.
1. What is the Genus species classification of the modern dog?
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2. What percent of today’s breeds did not exist 130 years ago? _____________________
3. What is the type of selective breeding used in manipulating dog genetics called?
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4. What is the Dogo argentino dog used for in Texas? ___________________________________
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5. The Dogo argentino is a genetic “stew” of the dogs listed in the table below.
Fill-in the missing spaces in the table.
a.
b.
c.
d.
e.
f.
Dogs in the Evolution of the Dogo
Breed of dog
Contribution
Pointer
Sense of smell
Great Dane
Irish Wolfhound
Insticts for wild game
Mastiff
Power
Great Pyrenees
Gentleness
6. The dog’s evolutionary ancestor was most like the __________________.
7. A dog’s nose has as many as _____________________________ olfactory receptors
8. List two jobs a dog uses its nose for.
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9. How many different kinds of chemical explosives can the Sulimov dog of Moscow
recognize? ___________________
10. What kind of wild dog makes up part of the genetics of the Sulimov dog? ______________________
THE SCIENCE OF DOGS
11. Regarding their DNA, dogs are __________ percent similar to one another.
12. What influence does the IGF-1 gene have in dog phenotypes? _______________________________
13. The signficant number of ______________________repeats in canine genes may help explain the
rapid increase in the number of dog breeds.
14. List two unintended consequences (genetic diseases) of the “breed standard” in maintaining
purebreds for dog shows.
15. What weird obsessive-compulsive behavior did Tally, the bull terrier exibit?
16. What vector is used to repair the defective Vitamin-A gene in blind dogs? _____________________
17. How does the wolf differ from the dog regarding its communicating with humans?
The following question was not in the video.
18. The Sulimov explosives-sniffing dog of Moscow is a hybrid between the Lapponian Herder
and the Golden Jackal. Modern dogs, however, cannot produce fertile offspring with the
Side-striped Jackal and the Black-backed Jackal. Why do you think this is so? (Hint: think
Lapponian Herder
chromosomes)
Golden Jackal